25197640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1031}}^1$

素因数の和:1102

約数の個数: 64

約数和(自身を含む): 62415360

約数和(自身を除く): 37217720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 47, 52, 65, 94, 104, 130, 188, 235, 260, 376, 470, 520, 611, 940, 1031, 1222, 1880, 2062, 2444, 3055, 4124, 4888, 5155, 6110, 8248, 10310, 12220, 13403, 20620, 24440, 26806, 41240, 48457, 53612, 67015, 96914, 107224, 134030, 193828, 242285, 268060, 387656, 484570, 536120, 629941, 969140, 1259882, 1938280, 2519764, 3149705, 5039528, 6299410, 12598820, 25197640]

約数ペア:

[(1, 25197640), (2, 12598820), (4, 6299410), (5, 5039528), (8, 3149705), (10, 2519764), (13, 1938280), (20, 1259882), (26, 969140), (40, 629941), (47, 536120), (52, 484570), (65, 387656), (94, 268060), (104, 242285), (130, 193828), (188, 134030), (235, 107224), (260, 96914), (376, 67015), (470, 53612), (520, 48457), (611, 41240), (940, 26806), (1031, 24440), (1222, 20620), (1880, 13403), (2062, 12220), (2444, 10310), (3055, 8248), (4124, 6110), (4888, 5155)]