20645242240

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{2111}}^1$

素因数の和:2233

約数の個数: 256

約数和(自身を含む): 58940006400

約数和(自身を除く): 38294764160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 37, 40, 56, 59, 64, 70, 74, 80, 112, 118, 128, 140, 148, 160, 185, 224, 236, 259, 280, 295, 296, 320, 370, 413, 448, 472, 518, 560, 590, 592, 640, 740, 826, 896, 944, 1036, 1120, 1180, 1184, 1295, 1480, 1652, 1888, 2065, 2072, 2111, 2183, 2240, 2360, 2368, 2590, 2960, 3304, 3776, 4130, 4144, 4222, 4366, 4480, 4720, 4736, 5180, 5920, 6608, 7552, 8260, 8288, 8444, 8732, 9440, 10360, 10555, 10915, 11840, 13216, 14777, 15281, 16520, 16576, 16888, 17464, 18880, 20720, 21110, 21830, 23680, 26432, 29554, 30562, 33040, 33152, 33776, 34928, 37760, 41440, 42220, 43660, 52864, 59108, 61124, 66080, 67552, 69856, 73885, 76405, 78107, 82880, 84440, 87320, 118216, 122248, 124549, 132160, 135104, 139712, 147770, 152810, 156214, 165760, 168880, 174640, 236432, 244496, 249098, 264320, 270208, 279424, 295540, 305620, 312428, 337760, 349280, 390535, 472864, 488992, 498196, 546749, 591080, 611240, 622745, 624856, 675520, 698560, 781070, 871843, 945728, 977984, 996392, 1093498, 1182160, 1222480, 1245490, 1249712, 1351040, 1397120, 1562140, 1743686, 1891456, 1955968, 1992784, 2186996, 2364320, 2444960, 2490980, 2499424, 2733745, 3124280, 3487372, 3985568, 4359215, 4373992, 4608313, 4728640, 4889920, 4981960, 4998848, 5467490, 6248560, 6974744, 7971136, 8718430, 8747984, 9216626, 9457280, 9779840, 9963920, 9997696, 10934980, 12497120, 13949488, 15942272, 17436860, 17495968, 18433252, 19927840, 21869960, 23041565, 24994240, 27898976, 32258191, 34873720, 34991936, 36866504, 39855680, 43739920, 46083130, 49988480, 55797952, 64516382, 69747440, 69983872, 73733008, 79711360, 87479840, 92166260, 111595904, 129032764, 139494880, 147466016, 161290955, 174959680, 184332520, 258065528, 278989760, 294932032, 322581910, 349919360, 368665040, 516131056, 557979520, 589864064, 645163820, 737330080, 1032262112, 1290327640, 1474660160, 2064524224, 2580655280, 2949320320, 4129048448, 5161310560, 10322621120, 20645242240]

約数ペア:

[(1, 20645242240), (2, 10322621120), (4, 5161310560), (5, 4129048448), (7, 2949320320), (8, 2580655280), (10, 2064524224), (14, 1474660160), (16, 1290327640), (20, 1032262112), (28, 737330080), (32, 645163820), (35, 589864064), (37, 557979520), (40, 516131056), (56, 368665040), (59, 349919360), (64, 322581910), (70, 294932032), (74, 278989760), (80, 258065528), (112, 184332520), (118, 174959680), (128, 161290955), (140, 147466016), (148, 139494880), (160, 129032764), (185, 111595904), (224, 92166260), (236, 87479840), (259, 79711360), (280, 73733008), (295, 69983872), (296, 69747440), (320, 64516382), (370, 55797952), (413, 49988480), (448, 46083130), (472, 43739920), (518, 39855680), (560, 36866504), (590, 34991936), (592, 34873720), (640, 32258191), (740, 27898976), (826, 24994240), (896, 23041565), (944, 21869960), (1036, 19927840), (1120, 18433252), (1180, 17495968), (1184, 17436860), (1295, 15942272), (1480, 13949488), (1652, 12497120), (1888, 10934980), (2065, 9997696), (2072, 9963920), (2111, 9779840), (2183, 9457280), (2240, 9216626), (2360, 8747984), (2368, 8718430), (2590, 7971136), (2960, 6974744), (3304, 6248560), (3776, 5467490), (4130, 4998848), (4144, 4981960), (4222, 4889920), (4366, 4728640), (4480, 4608313), (4720, 4373992), (4736, 4359215), (5180, 3985568), (5920, 3487372), (6608, 3124280), (7552, 2733745), (8260, 2499424), (8288, 2490980), (8444, 2444960), (8732, 2364320), (9440, 2186996), (10360, 1992784), (10555, 1955968), (10915, 1891456), (11840, 1743686), (13216, 1562140), (14777, 1397120), (15281, 1351040), (16520, 1249712), (16576, 1245490), (16888, 1222480), (17464, 1182160), (18880, 1093498), (20720, 996392), (21110, 977984), (21830, 945728), (23680, 871843), (26432, 781070), (29554, 698560), (30562, 675520), (33040, 624856), (33152, 622745), (33776, 611240), (34928, 591080), (37760, 546749), (41440, 498196), (42220, 488992), (43660, 472864), (52864, 390535), (59108, 349280), (61124, 337760), (66080, 312428), (67552, 305620), (69856, 295540), (73885, 279424), (76405, 270208), (78107, 264320), (82880, 249098), (84440, 244496), (87320, 236432), (118216, 174640), (122248, 168880), (124549, 165760), (132160, 156214), (135104, 152810), (139712, 147770)]