21458200

素因数分解:

$2^3\times 5^2\times {\mathrm{31}}^1\times {\mathrm{3461}}^1$

素因数の和:3508

約数の個数: 48

約数和(自身を含む): 51514560

約数和(自身を除く): 30056360

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 124, 155, 200, 248, 310, 620, 775, 1240, 1550, 3100, 3461, 6200, 6922, 13844, 17305, 27688, 34610, 69220, 86525, 107291, 138440, 173050, 214582, 346100, 429164, 536455, 692200, 858328, 1072910, 2145820, 2682275, 4291640, 5364550, 10729100, 21458200]

約数ペア:

[(1, 21458200), (2, 10729100), (4, 5364550), (5, 4291640), (8, 2682275), (10, 2145820), (20, 1072910), (25, 858328), (31, 692200), (40, 536455), (50, 429164), (62, 346100), (100, 214582), (124, 173050), (155, 138440), (200, 107291), (248, 86525), (310, 69220), (620, 34610), (775, 27688), (1240, 17305), (1550, 13844), (3100, 6922), (3461, 6200)]