40551680

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2437}}^1$

素因数の和:2471

約数の個数: 72

約数和(自身を含む): 104648712

約数和(自身を除く): 64097032

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 520, 640, 832, 1040, 1280, 1664, 2080, 2437, 3328, 4160, 4874, 8320, 9748, 12185, 16640, 19496, 24370, 31681, 38992, 48740, 63362, 77984, 97480, 126724, 155968, 158405, 194960, 253448, 311936, 316810, 389920, 506896, 623872, 633620, 779840, 1013792, 1267240, 1559680, 2027584, 2534480, 3119360, 4055168, 5068960, 8110336, 10137920, 20275840, 40551680]

約数ペア:

[(1, 40551680), (2, 20275840), (4, 10137920), (5, 8110336), (8, 5068960), (10, 4055168), (13, 3119360), (16, 2534480), (20, 2027584), (26, 1559680), (32, 1267240), (40, 1013792), (52, 779840), (64, 633620), (65, 623872), (80, 506896), (104, 389920), (128, 316810), (130, 311936), (160, 253448), (208, 194960), (256, 158405), (260, 155968), (320, 126724), (416, 97480), (520, 77984), (640, 63362), (832, 48740), (1040, 38992), (1280, 31681), (1664, 24370), (2080, 19496), (2437, 16640), (3328, 12185), (4160, 9748), (4874, 8320)]