31688020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{757}}^1$

素因数の和:809

約数の個数: 96

約数和(自身を含む): 85575168

約数和(自身を除く): 53887148

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 23, 26, 28, 35, 46, 52, 65, 70, 91, 92, 115, 130, 140, 161, 182, 230, 260, 299, 322, 364, 455, 460, 598, 644, 757, 805, 910, 1196, 1495, 1514, 1610, 1820, 2093, 2990, 3028, 3220, 3785, 4186, 5299, 5980, 7570, 8372, 9841, 10465, 10598, 15140, 17411, 19682, 20930, 21196, 26495, 34822, 39364, 41860, 49205, 52990, 68887, 69644, 87055, 98410, 105980, 121877, 137774, 174110, 196820, 226343, 243754, 275548, 344435, 348220, 452686, 487508, 609385, 688870, 905372, 1131715, 1218770, 1377740, 1584401, 2263430, 2437540, 3168802, 4526860, 6337604, 7922005, 15844010, 31688020]

約数ペア:

[(1, 31688020), (2, 15844010), (4, 7922005), (5, 6337604), (7, 4526860), (10, 3168802), (13, 2437540), (14, 2263430), (20, 1584401), (23, 1377740), (26, 1218770), (28, 1131715), (35, 905372), (46, 688870), (52, 609385), (65, 487508), (70, 452686), (91, 348220), (92, 344435), (115, 275548), (130, 243754), (140, 226343), (161, 196820), (182, 174110), (230, 137774), (260, 121877), (299, 105980), (322, 98410), (364, 87055), (455, 69644), (460, 68887), (598, 52990), (644, 49205), (757, 41860), (805, 39364), (910, 34822), (1196, 26495), (1495, 21196), (1514, 20930), (1610, 19682), (1820, 17411), (2093, 15140), (2990, 10598), (3028, 10465), (3220, 9841), (3785, 8372), (4186, 7570), (5299, 5980)]