72177920

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1$

素因数の和:176

約数の個数: 144

約数和(自身を含む): 190729728

約数和(自身を除く): 118551808

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 32, 34, 40, 62, 64, 68, 80, 85, 107, 124, 128, 136, 155, 160, 170, 214, 248, 256, 272, 310, 320, 340, 428, 496, 527, 535, 544, 620, 640, 680, 856, 992, 1054, 1070, 1088, 1240, 1280, 1360, 1712, 1819, 1984, 2108, 2140, 2176, 2480, 2635, 2720, 3317, 3424, 3638, 3968, 4216, 4280, 4352, 4960, 5270, 5440, 6634, 6848, 7276, 7936, 8432, 8560, 9095, 9920, 10540, 10880, 13268, 13696, 14552, 16585, 16864, 17120, 18190, 19840, 21080, 21760, 26536, 27392, 29104, 33170, 33728, 34240, 36380, 39680, 42160, 53072, 56389, 58208, 66340, 67456, 68480, 72760, 84320, 106144, 112778, 116416, 132680, 134912, 136960, 145520, 168640, 212288, 225556, 232832, 265360, 281945, 291040, 337280, 424576, 451112, 465664, 530720, 563890, 582080, 674560, 849152, 902224, 1061440, 1127780, 1164160, 1804448, 2122880, 2255560, 2328320, 3608896, 4245760, 4511120, 7217792, 9022240, 14435584, 18044480, 36088960, 72177920]

約数ペア:

[(1, 72177920), (2, 36088960), (4, 18044480), (5, 14435584), (8, 9022240), (10, 7217792), (16, 4511120), (17, 4245760), (20, 3608896), (31, 2328320), (32, 2255560), (34, 2122880), (40, 1804448), (62, 1164160), (64, 1127780), (68, 1061440), (80, 902224), (85, 849152), (107, 674560), (124, 582080), (128, 563890), (136, 530720), (155, 465664), (160, 451112), (170, 424576), (214, 337280), (248, 291040), (256, 281945), (272, 265360), (310, 232832), (320, 225556), (340, 212288), (428, 168640), (496, 145520), (527, 136960), (535, 134912), (544, 132680), (620, 116416), (640, 112778), (680, 106144), (856, 84320), (992, 72760), (1054, 68480), (1070, 67456), (1088, 66340), (1240, 58208), (1280, 56389), (1360, 53072), (1712, 42160), (1819, 39680), (1984, 36380), (2108, 34240), (2140, 33728), (2176, 33170), (2480, 29104), (2635, 27392), (2720, 26536), (3317, 21760), (3424, 21080), (3638, 19840), (3968, 18190), (4216, 17120), (4280, 16864), (4352, 16585), (4960, 14552), (5270, 13696), (5440, 13268), (6634, 10880), (6848, 10540), (7276, 9920), (7936, 9095), (8432, 8560)]