648960

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{13}}^2$

素因数の和:50

約数の個数: 108

約数和(自身を含む): 2244312

約数和(自身を除く): 1595352

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 128, 130, 156, 160, 169, 192, 195, 208, 240, 256, 260, 312, 320, 338, 384, 390, 416, 480, 507, 520, 624, 640, 676, 768, 780, 832, 845, 960, 1014, 1040, 1248, 1280, 1352, 1560, 1664, 1690, 1920, 2028, 2080, 2496, 2535, 2704, 3120, 3328, 3380, 3840, 4056, 4160, 4992, 5070, 5408, 6240, 6760, 8112, 8320, 9984, 10140, 10816, 12480, 13520, 16224, 16640, 20280, 21632, 24960, 27040, 32448, 40560, 43264, 49920, 54080, 64896, 81120, 108160, 129792, 162240, 216320, 324480, 648960]

約数ペア:

[(1, 648960), (2, 324480), (3, 216320), (4, 162240), (5, 129792), (6, 108160), (8, 81120), (10, 64896), (12, 54080), (13, 49920), (15, 43264), (16, 40560), (20, 32448), (24, 27040), (26, 24960), (30, 21632), (32, 20280), (39, 16640), (40, 16224), (48, 13520), (52, 12480), (60, 10816), (64, 10140), (65, 9984), (78, 8320), (80, 8112), (96, 6760), (104, 6240), (120, 5408), (128, 5070), (130, 4992), (156, 4160), (160, 4056), (169, 3840), (192, 3380), (195, 3328), (208, 3120), (240, 2704), (256, 2535), (260, 2496), (312, 2080), (320, 2028), (338, 1920), (384, 1690), (390, 1664), (416, 1560), (480, 1352), (507, 1280), (520, 1248), (624, 1040), (640, 1014), (676, 960), (768, 845), (780, 832)]