20228218600

素因数分解:

$2^3\times 5^2\times {\mathrm{79}}^1\times {\mathrm{1280267}}^1$

素因数の和:1280362

約数の個数: 48

約数和(自身を含む): 47625969600

約数和(自身を除く): 27397751000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 79, 100, 158, 200, 316, 395, 632, 790, 1580, 1975, 3160, 3950, 7900, 15800, 1280267, 2560534, 5121068, 6401335, 10242136, 12802670, 25605340, 32006675, 51210680, 64013350, 101141093, 128026700, 202282186, 256053400, 404564372, 505705465, 809128744, 1011410930, 2022821860, 2528527325, 4045643720, 5057054650, 10114109300, 20228218600]

約数ペア:

[(1, 20228218600), (2, 10114109300), (4, 5057054650), (5, 4045643720), (8, 2528527325), (10, 2022821860), (20, 1011410930), (25, 809128744), (40, 505705465), (50, 404564372), (79, 256053400), (100, 202282186), (158, 128026700), (200, 101141093), (316, 64013350), (395, 51210680), (632, 32006675), (790, 25605340), (1580, 12802670), (1975, 10242136), (3160, 6401335), (3950, 5121068), (7900, 2560534), (15800, 1280267)]