128764480

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2381}}^1$

素因数の和:2424

約数の個数: 84

約数和(自身を含む): 332160372

約数和(自身を除く): 203395892

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 169, 208, 260, 320, 338, 416, 520, 676, 832, 845, 1040, 1352, 1690, 2080, 2381, 2704, 3380, 4160, 4762, 5408, 6760, 9524, 10816, 11905, 13520, 19048, 23810, 27040, 30953, 38096, 47620, 54080, 61906, 76192, 95240, 123812, 152384, 154765, 190480, 247624, 309530, 380960, 402389, 495248, 619060, 761920, 804778, 990496, 1238120, 1609556, 1980992, 2011945, 2476240, 3219112, 4023890, 4952480, 6438224, 8047780, 9904960, 12876448, 16095560, 25752896, 32191120, 64382240, 128764480]

約数ペア:

[(1, 128764480), (2, 64382240), (4, 32191120), (5, 25752896), (8, 16095560), (10, 12876448), (13, 9904960), (16, 8047780), (20, 6438224), (26, 4952480), (32, 4023890), (40, 3219112), (52, 2476240), (64, 2011945), (65, 1980992), (80, 1609556), (104, 1238120), (130, 990496), (160, 804778), (169, 761920), (208, 619060), (260, 495248), (320, 402389), (338, 380960), (416, 309530), (520, 247624), (676, 190480), (832, 154765), (845, 152384), (1040, 123812), (1352, 95240), (1690, 76192), (2080, 61906), (2381, 54080), (2704, 47620), (3380, 38096), (4160, 30953), (4762, 27040), (5408, 23810), (6760, 19048), (9524, 13520), (10816, 11905)]