20838559600

素因数分解:

$2^4\times 5^2\times {\mathrm{31}}^1\times {\mathrm{1680529}}^1$

素因数の和:1680578

約数の個数: 60

約数和(自身を含む): 51679658560

約数和(自身を除く): 30841098960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 124, 155, 200, 248, 310, 400, 496, 620, 775, 1240, 1550, 2480, 3100, 6200, 12400, 1680529, 3361058, 6722116, 8402645, 13444232, 16805290, 26888464, 33610580, 42013225, 52096399, 67221160, 84026450, 104192798, 134442320, 168052900, 208385596, 260481995, 336105800, 416771192, 520963990, 672211600, 833542384, 1041927980, 1302409975, 2083855960, 2604819950, 4167711920, 5209639900, 10419279800, 20838559600]

約数ペア:

[(1, 20838559600), (2, 10419279800), (4, 5209639900), (5, 4167711920), (8, 2604819950), (10, 2083855960), (16, 1302409975), (20, 1041927980), (25, 833542384), (31, 672211600), (40, 520963990), (50, 416771192), (62, 336105800), (80, 260481995), (100, 208385596), (124, 168052900), (155, 134442320), (200, 104192798), (248, 84026450), (310, 67221160), (400, 52096399), (496, 42013225), (620, 33610580), (775, 26888464), (1240, 16805290), (1550, 13444232), (2480, 8402645), (3100, 6722116), (6200, 3361058), (12400, 1680529)]