25132580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1609}}^1$

素因数の和:1700

約数の個数: 48

約数和(自身を含む): 58423680

約数和(自身を除く): 33291100

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 142, 220, 284, 355, 710, 781, 1420, 1562, 1609, 3124, 3218, 3905, 6436, 7810, 8045, 15620, 16090, 17699, 32180, 35398, 70796, 88495, 114239, 176990, 228478, 353980, 456956, 571195, 1142390, 1256629, 2284780, 2513258, 5026516, 6283145, 12566290, 25132580]

約数ペア:

[(1, 25132580), (2, 12566290), (4, 6283145), (5, 5026516), (10, 2513258), (11, 2284780), (20, 1256629), (22, 1142390), (44, 571195), (55, 456956), (71, 353980), (110, 228478), (142, 176990), (220, 114239), (284, 88495), (355, 70796), (710, 35398), (781, 32180), (1420, 17699), (1562, 16090), (1609, 15620), (3124, 8045), (3218, 7810), (3905, 6436)]