131404390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{1607}}^1$

素因数の和:1681

約数の個数: 64

約数和(自身を含む): 277167744

約数和(自身を除く): 145763354

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 37, 65, 74, 85, 130, 170, 185, 221, 370, 442, 481, 629, 962, 1105, 1258, 1607, 2210, 2405, 3145, 3214, 4810, 6290, 8035, 8177, 16070, 16354, 20891, 27319, 40885, 41782, 54638, 59459, 81770, 104455, 118918, 136595, 208910, 273190, 297295, 355147, 594590, 710294, 772967, 1010803, 1545934, 1775735, 2021606, 3551470, 3864835, 5054015, 7729670, 10108030, 13140439, 26280878, 65702195, 131404390]

約数ペア:

[(1, 131404390), (2, 65702195), (5, 26280878), (10, 13140439), (13, 10108030), (17, 7729670), (26, 5054015), (34, 3864835), (37, 3551470), (65, 2021606), (74, 1775735), (85, 1545934), (130, 1010803), (170, 772967), (185, 710294), (221, 594590), (370, 355147), (442, 297295), (481, 273190), (629, 208910), (962, 136595), (1105, 118918), (1258, 104455), (1607, 81770), (2210, 59459), (2405, 54638), (3145, 41782), (3214, 40885), (4810, 27319), (6290, 20891), (8035, 16354), (8177, 16070)]