20194720

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1$

素因数の和:127

約数の個数: 192

約数和(自身を含む): 62657280

約数和(自身を除く): 42462560

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 19, 20, 26, 28, 32, 35, 38, 40, 52, 56, 65, 70, 73, 76, 80, 91, 95, 104, 112, 130, 133, 140, 146, 152, 160, 182, 190, 208, 224, 247, 260, 266, 280, 292, 304, 364, 365, 380, 416, 455, 494, 511, 520, 532, 560, 584, 608, 665, 728, 730, 760, 910, 949, 988, 1022, 1040, 1064, 1120, 1168, 1235, 1330, 1387, 1456, 1460, 1520, 1729, 1820, 1898, 1976, 2044, 2080, 2128, 2336, 2470, 2555, 2660, 2774, 2912, 2920, 3040, 3458, 3640, 3796, 3952, 4088, 4256, 4745, 4940, 5110, 5320, 5548, 5840, 6643, 6916, 6935, 7280, 7592, 7904, 8176, 8645, 9490, 9709, 9880, 10220, 10640, 11096, 11680, 13286, 13832, 13870, 14560, 15184, 16352, 17290, 18031, 18980, 19418, 19760, 20440, 21280, 22192, 26572, 27664, 27740, 30368, 33215, 34580, 36062, 37960, 38836, 39520, 40880, 44384, 48545, 53144, 55328, 55480, 66430, 69160, 72124, 75920, 77672, 81760, 90155, 97090, 106288, 110960, 126217, 132860, 138320, 144248, 151840, 155344, 180310, 194180, 212576, 221920, 252434, 265720, 276640, 288496, 310688, 360620, 388360, 504868, 531440, 576992, 631085, 721240, 776720, 1009736, 1062880, 1262170, 1442480, 1553440, 2019472, 2524340, 2884960, 4038944, 5048680, 10097360, 20194720]

約数ペア:

[(1, 20194720), (2, 10097360), (4, 5048680), (5, 4038944), (7, 2884960), (8, 2524340), (10, 2019472), (13, 1553440), (14, 1442480), (16, 1262170), (19, 1062880), (20, 1009736), (26, 776720), (28, 721240), (32, 631085), (35, 576992), (38, 531440), (40, 504868), (52, 388360), (56, 360620), (65, 310688), (70, 288496), (73, 276640), (76, 265720), (80, 252434), (91, 221920), (95, 212576), (104, 194180), (112, 180310), (130, 155344), (133, 151840), (140, 144248), (146, 138320), (152, 132860), (160, 126217), (182, 110960), (190, 106288), (208, 97090), (224, 90155), (247, 81760), (260, 77672), (266, 75920), (280, 72124), (292, 69160), (304, 66430), (364, 55480), (365, 55328), (380, 53144), (416, 48545), (455, 44384), (494, 40880), (511, 39520), (520, 38836), (532, 37960), (560, 36062), (584, 34580), (608, 33215), (665, 30368), (728, 27740), (730, 27664), (760, 26572), (910, 22192), (949, 21280), (988, 20440), (1022, 19760), (1040, 19418), (1064, 18980), (1120, 18031), (1168, 17290), (1235, 16352), (1330, 15184), (1387, 14560), (1456, 13870), (1460, 13832), (1520, 13286), (1729, 11680), (1820, 11096), (1898, 10640), (1976, 10220), (2044, 9880), (2080, 9709), (2128, 9490), (2336, 8645), (2470, 8176), (2555, 7904), (2660, 7592), (2774, 7280), (2912, 6935), (2920, 6916), (3040, 6643), (3458, 5840), (3640, 5548), (3796, 5320), (3952, 5110), (4088, 4940), (4256, 4745)]