18589870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{4931}}^1$

素因数の和:4980

約数の個数: 32

約数和(自身を含む): 37285920

約数和(自身を除く): 18696050

約数列:

[1, 2, 5, 10, 13, 26, 29, 58, 65, 130, 145, 290, 377, 754, 1885, 3770, 4931, 9862, 24655, 49310, 64103, 128206, 142999, 285998, 320515, 641030, 714995, 1429990, 1858987, 3717974, 9294935, 18589870]

約数ペア:

[(1, 18589870), (2, 9294935), (5, 3717974), (10, 1858987), (13, 1429990), (26, 714995), (29, 641030), (58, 320515), (65, 285998), (130, 142999), (145, 128206), (290, 64103), (377, 49310), (754, 24655), (1885, 9862), (3770, 4931)]