21997600

素因数分解:

$2^5\times 5^2\times {\mathrm{31}}^1\times {\mathrm{887}}^1$

素因数の和:938

約数の個数: 72

約数和(自身を含む): 55496448

約数和(自身を除く): 33498848

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 80, 100, 124, 155, 160, 200, 248, 310, 400, 496, 620, 775, 800, 887, 992, 1240, 1550, 1774, 2480, 3100, 3548, 4435, 4960, 6200, 7096, 8870, 12400, 14192, 17740, 22175, 24800, 27497, 28384, 35480, 44350, 54994, 70960, 88700, 109988, 137485, 141920, 177400, 219976, 274970, 354800, 439952, 549940, 687425, 709600, 879904, 1099880, 1374850, 2199760, 2749700, 4399520, 5499400, 10998800, 21997600]

約数ペア:

[(1, 21997600), (2, 10998800), (4, 5499400), (5, 4399520), (8, 2749700), (10, 2199760), (16, 1374850), (20, 1099880), (25, 879904), (31, 709600), (32, 687425), (40, 549940), (50, 439952), (62, 354800), (80, 274970), (100, 219976), (124, 177400), (155, 141920), (160, 137485), (200, 109988), (248, 88700), (310, 70960), (400, 54994), (496, 44350), (620, 35480), (775, 28384), (800, 27497), (887, 24800), (992, 22175), (1240, 17740), (1550, 14192), (1774, 12400), (2480, 8870), (3100, 7096), (3548, 6200), (4435, 4960)]