31671770

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{271}}^1$

素因数の和:351

約数の個数: 64

約数和(自身を含む): 65802240

約数和(自身を除く): 34130470

約数列:

[1, 2, 5, 10, 13, 26, 29, 31, 58, 62, 65, 130, 145, 155, 271, 290, 310, 377, 403, 542, 754, 806, 899, 1355, 1798, 1885, 2015, 2710, 3523, 3770, 4030, 4495, 7046, 7859, 8401, 8990, 11687, 15718, 16802, 17615, 23374, 35230, 39295, 42005, 58435, 78590, 84010, 102167, 109213, 116870, 204334, 218426, 243629, 487258, 510835, 546065, 1021670, 1092130, 1218145, 2436290, 3167177, 6334354, 15835885, 31671770]

約数ペア:

[(1, 31671770), (2, 15835885), (5, 6334354), (10, 3167177), (13, 2436290), (26, 1218145), (29, 1092130), (31, 1021670), (58, 546065), (62, 510835), (65, 487258), (130, 243629), (145, 218426), (155, 204334), (271, 116870), (290, 109213), (310, 102167), (377, 84010), (403, 78590), (542, 58435), (754, 42005), (806, 39295), (899, 35230), (1355, 23374), (1798, 17615), (1885, 16802), (2015, 15718), (2710, 11687), (3523, 8990), (3770, 8401), (4030, 7859), (4495, 7046)]