20187686600

素因数分解:

$2^3\times 5^2\times {\mathrm{41}}^1\times {\mathrm{2461913}}^1$

素因数の和:2461970

約数の個数: 48

約数和(自身を含む): 48081180420

約数和(自身を除く): 27893493820

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 41, 50, 82, 100, 164, 200, 205, 328, 410, 820, 1025, 1640, 2050, 4100, 8200, 2461913, 4923826, 9847652, 12309565, 19695304, 24619130, 49238260, 61547825, 98476520, 100938433, 123095650, 201876866, 246191300, 403753732, 492382600, 504692165, 807507464, 1009384330, 2018768660, 2523460825, 4037537320, 5046921650, 10093843300, 20187686600]

約数ペア:

[(1, 20187686600), (2, 10093843300), (4, 5046921650), (5, 4037537320), (8, 2523460825), (10, 2018768660), (20, 1009384330), (25, 807507464), (40, 504692165), (41, 492382600), (50, 403753732), (82, 246191300), (100, 201876866), (164, 123095650), (200, 100938433), (205, 98476520), (328, 61547825), (410, 49238260), (820, 24619130), (1025, 19695304), (1640, 12309565), (2050, 9847652), (4100, 4923826), (8200, 2461913)]