20115590

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{347}}^1$

素因数の和:413

約数の個数: 64

約数和(自身を含む): 43296768

約数和(自身を除く): 23181178

約数列:

[1, 2, 5, 10, 11, 17, 22, 31, 34, 55, 62, 85, 110, 155, 170, 187, 310, 341, 347, 374, 527, 682, 694, 935, 1054, 1705, 1735, 1870, 2635, 3410, 3470, 3817, 5270, 5797, 5899, 7634, 10757, 11594, 11798, 19085, 21514, 28985, 29495, 38170, 53785, 57970, 58990, 64889, 107570, 118327, 129778, 182869, 236654, 324445, 365738, 591635, 648890, 914345, 1183270, 1828690, 2011559, 4023118, 10057795, 20115590]

約数ペア:

[(1, 20115590), (2, 10057795), (5, 4023118), (10, 2011559), (11, 1828690), (17, 1183270), (22, 914345), (31, 648890), (34, 591635), (55, 365738), (62, 324445), (85, 236654), (110, 182869), (155, 129778), (170, 118327), (187, 107570), (310, 64889), (341, 58990), (347, 57970), (374, 53785), (527, 38170), (682, 29495), (694, 28985), (935, 21514), (1054, 19085), (1705, 11798), (1735, 11594), (1870, 10757), (2635, 7634), (3410, 5899), (3470, 5797), (3817, 5270)]