20698700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{607}}^1$

素因数の和:663

約数の個数: 72

約数和(自身を含む): 50663424

約数和(自身を除く): 29964724

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 31, 44, 50, 55, 62, 100, 110, 124, 155, 220, 275, 310, 341, 550, 607, 620, 682, 775, 1100, 1214, 1364, 1550, 1705, 2428, 3035, 3100, 3410, 6070, 6677, 6820, 8525, 12140, 13354, 15175, 17050, 18817, 26708, 30350, 33385, 34100, 37634, 60700, 66770, 75268, 94085, 133540, 166925, 188170, 206987, 333850, 376340, 413974, 470425, 667700, 827948, 940850, 1034935, 1881700, 2069870, 4139740, 5174675, 10349350, 20698700]

約数ペア:

[(1, 20698700), (2, 10349350), (4, 5174675), (5, 4139740), (10, 2069870), (11, 1881700), (20, 1034935), (22, 940850), (25, 827948), (31, 667700), (44, 470425), (50, 413974), (55, 376340), (62, 333850), (100, 206987), (110, 188170), (124, 166925), (155, 133540), (220, 94085), (275, 75268), (310, 66770), (341, 60700), (550, 37634), (607, 34100), (620, 33385), (682, 30350), (775, 26708), (1100, 18817), (1214, 17050), (1364, 15175), (1550, 13354), (1705, 12140), (2428, 8525), (3035, 6820), (3100, 6677), (3410, 6070)]