25757420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{631}}^1$

素因数の和:810

約数の個数: 48

約数和(自身を含む): 58715328

約数和(自身を除く): 32957908

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 157, 260, 314, 628, 631, 785, 1262, 1570, 2041, 2524, 3140, 3155, 4082, 6310, 8164, 8203, 10205, 12620, 16406, 20410, 32812, 40820, 41015, 82030, 99067, 164060, 198134, 396268, 495335, 990670, 1287871, 1981340, 2575742, 5151484, 6439355, 12878710, 25757420]

約数ペア:

[(1, 25757420), (2, 12878710), (4, 6439355), (5, 5151484), (10, 2575742), (13, 1981340), (20, 1287871), (26, 990670), (52, 495335), (65, 396268), (130, 198134), (157, 164060), (260, 99067), (314, 82030), (628, 41015), (631, 40820), (785, 32812), (1262, 20410), (1570, 16406), (2041, 12620), (2524, 10205), (3140, 8203), (3155, 8164), (4082, 6310)]