25256980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{809}}^1$

素因数の和:1048

約数の個数: 48

約数和(自身を含む): 60963840

約数和(自身を除く): 35706860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 223, 446, 809, 892, 1115, 1561, 1618, 2230, 3122, 3236, 4045, 4460, 5663, 6244, 7805, 8090, 11326, 15610, 16180, 22652, 28315, 31220, 56630, 113260, 180407, 360814, 721628, 902035, 1262849, 1804070, 2525698, 3608140, 5051396, 6314245, 12628490, 25256980]

約数ペア:

[(1, 25256980), (2, 12628490), (4, 6314245), (5, 5051396), (7, 3608140), (10, 2525698), (14, 1804070), (20, 1262849), (28, 902035), (35, 721628), (70, 360814), (140, 180407), (223, 113260), (446, 56630), (809, 31220), (892, 28315), (1115, 22652), (1561, 16180), (1618, 15610), (2230, 11326), (3122, 8090), (3236, 7805), (4045, 6244), (4460, 5663)]