19871200

素因数分解:

$2^5\times 5^2\times {\mathrm{59}}^1\times {\mathrm{421}}^1$

素因数の和:500

約数の個数: 72

約数和(自身を含む): 49449960

約数和(自身を除く): 29578760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 59, 80, 100, 118, 160, 200, 236, 295, 400, 421, 472, 590, 800, 842, 944, 1180, 1475, 1684, 1888, 2105, 2360, 2950, 3368, 4210, 4720, 5900, 6736, 8420, 9440, 10525, 11800, 13472, 16840, 21050, 23600, 24839, 33680, 42100, 47200, 49678, 67360, 84200, 99356, 124195, 168400, 198712, 248390, 336800, 397424, 496780, 620975, 794848, 993560, 1241950, 1987120, 2483900, 3974240, 4967800, 9935600, 19871200]

約数ペア:

[(1, 19871200), (2, 9935600), (4, 4967800), (5, 3974240), (8, 2483900), (10, 1987120), (16, 1241950), (20, 993560), (25, 794848), (32, 620975), (40, 496780), (50, 397424), (59, 336800), (80, 248390), (100, 198712), (118, 168400), (160, 124195), (200, 99356), (236, 84200), (295, 67360), (400, 49678), (421, 47200), (472, 42100), (590, 33680), (800, 24839), (842, 23600), (944, 21050), (1180, 16840), (1475, 13472), (1684, 11800), (1888, 10525), (2105, 9440), (2360, 8420), (2950, 6736), (3368, 5900), (4210, 4720)]