31523440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1783}}^1$

素因数の和:1826

約数の個数: 80

約数和(自身を含む): 83619648

約数和(自身を除く): 52096208

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 34, 40, 52, 65, 68, 80, 85, 104, 130, 136, 170, 208, 221, 260, 272, 340, 442, 520, 680, 884, 1040, 1105, 1360, 1768, 1783, 2210, 3536, 3566, 4420, 7132, 8840, 8915, 14264, 17680, 17830, 23179, 28528, 30311, 35660, 46358, 60622, 71320, 92716, 115895, 121244, 142640, 151555, 185432, 231790, 242488, 303110, 370864, 394043, 463580, 484976, 606220, 788086, 927160, 1212440, 1576172, 1854320, 1970215, 2424880, 3152344, 3940430, 6304688, 7880860, 15761720, 31523440]

約数ペア:

[(1, 31523440), (2, 15761720), (4, 7880860), (5, 6304688), (8, 3940430), (10, 3152344), (13, 2424880), (16, 1970215), (17, 1854320), (20, 1576172), (26, 1212440), (34, 927160), (40, 788086), (52, 606220), (65, 484976), (68, 463580), (80, 394043), (85, 370864), (104, 303110), (130, 242488), (136, 231790), (170, 185432), (208, 151555), (221, 142640), (260, 121244), (272, 115895), (340, 92716), (442, 71320), (520, 60622), (680, 46358), (884, 35660), (1040, 30311), (1105, 28528), (1360, 23179), (1768, 17830), (1783, 17680), (2210, 14264), (3536, 8915), (3566, 8840), (4420, 7132)]