20558855500

素因数分解:

$2^2\times 5^3\times {\mathrm{41}}^1\times {\mathrm{1002871}}^1$

素因数の和:1002931

約数の個数: 48

約数和(自身を含む): 45995721408

約数和(自身を除く): 25436865908

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 125, 164, 205, 250, 410, 500, 820, 1025, 2050, 4100, 5125, 10250, 20500, 1002871, 2005742, 4011484, 5014355, 10028710, 20057420, 25071775, 41117711, 50143550, 82235422, 100287100, 125358875, 164470844, 205588555, 250717750, 411177110, 501435500, 822354220, 1027942775, 2055885550, 4111771100, 5139713875, 10279427750, 20558855500]

約数ペア:

[(1, 20558855500), (2, 10279427750), (4, 5139713875), (5, 4111771100), (10, 2055885550), (20, 1027942775), (25, 822354220), (41, 501435500), (50, 411177110), (82, 250717750), (100, 205588555), (125, 164470844), (164, 125358875), (205, 100287100), (250, 82235422), (410, 50143550), (500, 41117711), (820, 25071775), (1025, 20057420), (2050, 10028710), (4100, 5014355), (5125, 4011484), (10250, 2005742), (20500, 1002871)]