20357220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{26099}}^1$

素因数の和:26124

約数の個数: 48

約数和(自身を含む): 61387200

約数和(自身を除く): 41029980

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 26099, 52198, 78297, 104396, 130495, 156594, 260990, 313188, 339287, 391485, 521980, 678574, 782970, 1017861, 1357148, 1565940, 1696435, 2035722, 3392870, 4071444, 5089305, 6785740, 10178610, 20357220]

約数ペア:

[(1, 20357220), (2, 10178610), (3, 6785740), (4, 5089305), (5, 4071444), (6, 3392870), (10, 2035722), (12, 1696435), (13, 1565940), (15, 1357148), (20, 1017861), (26, 782970), (30, 678574), (39, 521980), (52, 391485), (60, 339287), (65, 313188), (78, 260990), (130, 156594), (156, 130495), (195, 104396), (260, 78297), (390, 52198), (780, 26099)]