64311520

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{631}}^1$

素因数の和:673

約数の個数: 144

約数和(自身を含む): 190639008

約数和(自身を除く): 126327488

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 49, 52, 56, 65, 70, 80, 91, 98, 104, 112, 130, 140, 160, 182, 196, 208, 224, 245, 260, 280, 364, 392, 416, 455, 490, 520, 560, 631, 637, 728, 784, 910, 980, 1040, 1120, 1262, 1274, 1456, 1568, 1820, 1960, 2080, 2524, 2548, 2912, 3155, 3185, 3640, 3920, 4417, 5048, 5096, 6310, 6370, 7280, 7840, 8203, 8834, 10096, 10192, 12620, 12740, 14560, 16406, 17668, 20192, 20384, 22085, 25240, 25480, 30919, 32812, 35336, 41015, 44170, 50480, 50960, 57421, 61838, 65624, 70672, 82030, 88340, 100960, 101920, 114842, 123676, 131248, 141344, 154595, 164060, 176680, 229684, 247352, 262496, 287105, 309190, 328120, 353360, 401947, 459368, 494704, 574210, 618380, 656240, 706720, 803894, 918736, 989408, 1148420, 1236760, 1312480, 1607788, 1837472, 2009735, 2296840, 2473520, 3215576, 4019470, 4593680, 4947040, 6431152, 8038940, 9187360, 12862304, 16077880, 32155760, 64311520]

約数ペア:

[(1, 64311520), (2, 32155760), (4, 16077880), (5, 12862304), (7, 9187360), (8, 8038940), (10, 6431152), (13, 4947040), (14, 4593680), (16, 4019470), (20, 3215576), (26, 2473520), (28, 2296840), (32, 2009735), (35, 1837472), (40, 1607788), (49, 1312480), (52, 1236760), (56, 1148420), (65, 989408), (70, 918736), (80, 803894), (91, 706720), (98, 656240), (104, 618380), (112, 574210), (130, 494704), (140, 459368), (160, 401947), (182, 353360), (196, 328120), (208, 309190), (224, 287105), (245, 262496), (260, 247352), (280, 229684), (364, 176680), (392, 164060), (416, 154595), (455, 141344), (490, 131248), (520, 123676), (560, 114842), (631, 101920), (637, 100960), (728, 88340), (784, 82030), (910, 70672), (980, 65624), (1040, 61838), (1120, 57421), (1262, 50960), (1274, 50480), (1456, 44170), (1568, 41015), (1820, 35336), (1960, 32812), (2080, 30919), (2524, 25480), (2548, 25240), (2912, 22085), (3155, 20384), (3185, 20192), (3640, 17668), (3920, 16406), (4417, 14560), (5048, 12740), (5096, 12620), (6310, 10192), (6370, 10096), (7280, 8834), (7840, 8203)]