20892400

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{2749}}^1$

素因数の和:2786

約数の個数: 60

約数和(自身を含む): 52855000

約数和(自身を除く): 31962600

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, 2749, 3800, 5498, 7600, 10996, 13745, 21992, 27490, 43984, 52231, 54980, 68725, 104462, 109960, 137450, 208924, 219920, 261155, 274900, 417848, 522310, 549800, 835696, 1044620, 1099600, 1305775, 2089240, 2611550, 4178480, 5223100, 10446200, 20892400]

約数ペア:

[(1, 20892400), (2, 10446200), (4, 5223100), (5, 4178480), (8, 2611550), (10, 2089240), (16, 1305775), (19, 1099600), (20, 1044620), (25, 835696), (38, 549800), (40, 522310), (50, 417848), (76, 274900), (80, 261155), (95, 219920), (100, 208924), (152, 137450), (190, 109960), (200, 104462), (304, 68725), (380, 54980), (400, 52231), (475, 43984), (760, 27490), (950, 21992), (1520, 13745), (1900, 10996), (2749, 7600), (3800, 5498)]