256808160

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{349}}^1$

素因数の和:450

約数の個数: 288

約数和(自身を含む): 1018180800

約数和(自身を除く): 761372640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 73, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 146, 160, 168, 180, 210, 219, 224, 240, 252, 280, 288, 292, 315, 336, 349, 360, 365, 420, 438, 480, 504, 511, 560, 584, 630, 657, 672, 698, 720, 730, 840, 876, 1008, 1022, 1047, 1095, 1120, 1168, 1260, 1314, 1396, 1440, 1460, 1533, 1680, 1745, 1752, 2016, 2044, 2094, 2190, 2336, 2443, 2520, 2555, 2628, 2792, 2920, 3066, 3141, 3285, 3360, 3490, 3504, 4088, 4188, 4380, 4599, 4886, 5040, 5110, 5235, 5256, 5584, 5840, 6132, 6282, 6570, 6980, 7008, 7329, 7665, 8176, 8376, 8760, 9198, 9772, 10080, 10220, 10470, 10512, 11168, 11680, 12215, 12264, 12564, 13140, 13960, 14658, 15330, 15705, 16352, 16752, 17520, 18396, 19544, 20440, 20940, 21024, 21987, 22995, 24430, 24528, 25128, 25477, 26280, 27920, 29316, 30660, 31410, 33504, 35040, 36645, 36792, 39088, 40880, 41880, 43974, 45990, 48860, 49056, 50256, 50954, 52560, 55840, 58632, 61320, 62820, 73290, 73584, 76431, 78176, 81760, 83760, 87948, 91980, 97720, 100512, 101908, 105120, 109935, 117264, 122640, 125640, 127385, 146580, 147168, 152862, 167520, 175896, 178339, 183960, 195440, 203816, 219870, 229293, 234528, 245280, 251280, 254770, 293160, 305724, 351792, 356678, 367920, 382155, 390880, 407632, 439740, 458586, 502560, 509540, 535017, 586320, 611448, 703584, 713356, 735840, 764310, 815264, 879480, 891695, 917172, 1019080, 1070034, 1146465, 1172640, 1222896, 1426712, 1528620, 1605051, 1758960, 1783390, 1834344, 2038160, 2140068, 2292930, 2445792, 2675085, 2853424, 3057240, 3210102, 3517920, 3566780, 3668688, 4076320, 4280136, 4585860, 5350170, 5706848, 6114480, 6420204, 7133560, 7337376, 8025255, 8560272, 9171720, 10700340, 12228960, 12840408, 14267120, 16050510, 17120544, 18343440, 21400680, 25680816, 28534240, 32101020, 36686880, 42801360, 51361632, 64202040, 85602720, 128404080, 256808160]

約数ペア:

[(1, 256808160), (2, 128404080), (3, 85602720), (4, 64202040), (5, 51361632), (6, 42801360), (7, 36686880), (8, 32101020), (9, 28534240), (10, 25680816), (12, 21400680), (14, 18343440), (15, 17120544), (16, 16050510), (18, 14267120), (20, 12840408), (21, 12228960), (24, 10700340), (28, 9171720), (30, 8560272), (32, 8025255), (35, 7337376), (36, 7133560), (40, 6420204), (42, 6114480), (45, 5706848), (48, 5350170), (56, 4585860), (60, 4280136), (63, 4076320), (70, 3668688), (72, 3566780), (73, 3517920), (80, 3210102), (84, 3057240), (90, 2853424), (96, 2675085), (105, 2445792), (112, 2292930), (120, 2140068), (126, 2038160), (140, 1834344), (144, 1783390), (146, 1758960), (160, 1605051), (168, 1528620), (180, 1426712), (210, 1222896), (219, 1172640), (224, 1146465), (240, 1070034), (252, 1019080), (280, 917172), (288, 891695), (292, 879480), (315, 815264), (336, 764310), (349, 735840), (360, 713356), (365, 703584), (420, 611448), (438, 586320), (480, 535017), (504, 509540), (511, 502560), (560, 458586), (584, 439740), (630, 407632), (657, 390880), (672, 382155), (698, 367920), (720, 356678), (730, 351792), (840, 305724), (876, 293160), (1008, 254770), (1022, 251280), (1047, 245280), (1095, 234528), (1120, 229293), (1168, 219870), (1260, 203816), (1314, 195440), (1396, 183960), (1440, 178339), (1460, 175896), (1533, 167520), (1680, 152862), (1745, 147168), (1752, 146580), (2016, 127385), (2044, 125640), (2094, 122640), (2190, 117264), (2336, 109935), (2443, 105120), (2520, 101908), (2555, 100512), (2628, 97720), (2792, 91980), (2920, 87948), (3066, 83760), (3141, 81760), (3285, 78176), (3360, 76431), (3490, 73584), (3504, 73290), (4088, 62820), (4188, 61320), (4380, 58632), (4599, 55840), (4886, 52560), (5040, 50954), (5110, 50256), (5235, 49056), (5256, 48860), (5584, 45990), (5840, 43974), (6132, 41880), (6282, 40880), (6570, 39088), (6980, 36792), (7008, 36645), (7329, 35040), (7665, 33504), (8176, 31410), (8376, 30660), (8760, 29316), (9198, 27920), (9772, 26280), (10080, 25477), (10220, 25128), (10470, 24528), (10512, 24430), (11168, 22995), (11680, 21987), (12215, 21024), (12264, 20940), (12564, 20440), (13140, 19544), (13960, 18396), (14658, 17520), (15330, 16752), (15705, 16352)]