254579520

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{20399}}^1$

素因数の和:20432

約数の個数: 112

約数和(自身を含む): 870508800

約数和(自身を除く): 615929280

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, 130, 156, 160, 192, 195, 208, 240, 260, 312, 320, 390, 416, 480, 520, 624, 780, 832, 960, 1040, 1248, 1560, 2080, 2496, 3120, 4160, 6240, 12480, 20399, 40798, 61197, 81596, 101995, 122394, 163192, 203990, 244788, 265187, 305985, 326384, 407980, 489576, 530374, 611970, 652768, 795561, 815960, 979152, 1060748, 1223940, 1305536, 1325935, 1591122, 1631920, 1958304, 2121496, 2447880, 2651870, 3182244, 3263840, 3916608, 3977805, 4242992, 4895760, 5303740, 6364488, 6527680, 7955610, 8485984, 9791520, 10607480, 12728976, 15911220, 16971968, 19583040, 21214960, 25457952, 31822440, 42429920, 50915904, 63644880, 84859840, 127289760, 254579520]

約数ペア:

[(1, 254579520), (2, 127289760), (3, 84859840), (4, 63644880), (5, 50915904), (6, 42429920), (8, 31822440), (10, 25457952), (12, 21214960), (13, 19583040), (15, 16971968), (16, 15911220), (20, 12728976), (24, 10607480), (26, 9791520), (30, 8485984), (32, 7955610), (39, 6527680), (40, 6364488), (48, 5303740), (52, 4895760), (60, 4242992), (64, 3977805), (65, 3916608), (78, 3263840), (80, 3182244), (96, 2651870), (104, 2447880), (120, 2121496), (130, 1958304), (156, 1631920), (160, 1591122), (192, 1325935), (195, 1305536), (208, 1223940), (240, 1060748), (260, 979152), (312, 815960), (320, 795561), (390, 652768), (416, 611970), (480, 530374), (520, 489576), (624, 407980), (780, 326384), (832, 305985), (960, 265187), (1040, 244788), (1248, 203990), (1560, 163192), (2080, 122394), (2496, 101995), (3120, 81596), (4160, 61197), (6240, 40798), (12480, 20399)]