21211600

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{2791}}^1$

素因数の和:2828

約数の個数: 60

約数和(自身を含む): 53662240

約数和(自身を除く): 32450640

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 50, 76, 80, 95, 100, 152, 190, 200, 304, 380, 400, 475, 760, 950, 1520, 1900, 2791, 3800, 5582, 7600, 11164, 13955, 22328, 27910, 44656, 53029, 55820, 69775, 106058, 111640, 139550, 212116, 223280, 265145, 279100, 424232, 530290, 558200, 848464, 1060580, 1116400, 1325725, 2121160, 2651450, 4242320, 5302900, 10605800, 21211600]

約数ペア:

[(1, 21211600), (2, 10605800), (4, 5302900), (5, 4242320), (8, 2651450), (10, 2121160), (16, 1325725), (19, 1116400), (20, 1060580), (25, 848464), (38, 558200), (40, 530290), (50, 424232), (76, 279100), (80, 265145), (95, 223280), (100, 212116), (152, 139550), (190, 111640), (200, 106058), (304, 69775), (380, 55820), (400, 53029), (475, 44656), (760, 27910), (950, 22328), (1520, 13955), (1900, 11164), (2791, 7600), (3800, 5582)]