21725700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{139}}^1\times {\mathrm{521}}^1$

素因数の和:677

約数の個数: 72

約数和(自身を含む): 63433440

約数和(自身を除く): 41707740

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 139, 150, 278, 300, 417, 521, 556, 695, 834, 1042, 1390, 1563, 1668, 2084, 2085, 2605, 2780, 3126, 3475, 4170, 5210, 6252, 6950, 7815, 8340, 10420, 10425, 13025, 13900, 15630, 20850, 26050, 31260, 39075, 41700, 52100, 72419, 78150, 144838, 156300, 217257, 289676, 362095, 434514, 724190, 869028, 1086285, 1448380, 1810475, 2172570, 3620950, 4345140, 5431425, 7241900, 10862850, 21725700]

約数ペア:

[(1, 21725700), (2, 10862850), (3, 7241900), (4, 5431425), (5, 4345140), (6, 3620950), (10, 2172570), (12, 1810475), (15, 1448380), (20, 1086285), (25, 869028), (30, 724190), (50, 434514), (60, 362095), (75, 289676), (100, 217257), (139, 156300), (150, 144838), (278, 78150), (300, 72419), (417, 52100), (521, 41700), (556, 39075), (695, 31260), (834, 26050), (1042, 20850), (1390, 15630), (1563, 13900), (1668, 13025), (2084, 10425), (2085, 10420), (2605, 8340), (2780, 7815), (3126, 6950), (3475, 6252), (4170, 5210)]