1988100

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{47}}^2$

素因数の和:114

約数の個数: 81

約数和(自身を含む): 6366997

約数和(自身を除く): 4378897

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 47, 50, 60, 75, 90, 94, 100, 141, 150, 180, 188, 225, 235, 282, 300, 423, 450, 470, 564, 705, 846, 900, 940, 1175, 1410, 1692, 2115, 2209, 2350, 2820, 3525, 4230, 4418, 4700, 6627, 7050, 8460, 8836, 10575, 11045, 13254, 14100, 19881, 21150, 22090, 26508, 33135, 39762, 42300, 44180, 55225, 66270, 79524, 99405, 110450, 132540, 165675, 198810, 220900, 331350, 397620, 497025, 662700, 994050, 1988100]

約数ペア:

[(1, 1988100), (2, 994050), (3, 662700), (4, 497025), (5, 397620), (6, 331350), (9, 220900), (10, 198810), (12, 165675), (15, 132540), (18, 110450), (20, 99405), (25, 79524), (30, 66270), (36, 55225), (45, 44180), (47, 42300), (50, 39762), (60, 33135), (75, 26508), (90, 22090), (94, 21150), (100, 19881), (141, 14100), (150, 13254), (180, 11045), (188, 10575), (225, 8836), (235, 8460), (282, 7050), (300, 6627), (423, 4700), (450, 4418), (470, 4230), (564, 3525), (705, 2820), (846, 2350), (900, 2209), (940, 2115), (1175, 1692)]