27798940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3449}}^1$

素因数の和:3502

約数の個数: 48

約数和(自身を含む): 64915200

約数和(自身を除く): 37116260

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 3449, 4030, 6898, 8060, 13796, 17245, 34490, 44837, 68980, 89674, 106919, 179348, 213838, 224185, 427676, 448370, 534595, 896740, 1069190, 1389947, 2138380, 2779894, 5559788, 6949735, 13899470, 27798940]

約数ペア:

[(1, 27798940), (2, 13899470), (4, 6949735), (5, 5559788), (10, 2779894), (13, 2138380), (20, 1389947), (26, 1069190), (31, 896740), (52, 534595), (62, 448370), (65, 427676), (124, 224185), (130, 213838), (155, 179348), (260, 106919), (310, 89674), (403, 68980), (620, 44837), (806, 34490), (1612, 17245), (2015, 13796), (3449, 8060), (4030, 6898)]