25966840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{487}}^1$

素因数の和:572

約数の個数: 64

約数和(自身を含む): 61839360

約数和(自身を除く): 35872520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 43, 62, 86, 124, 155, 172, 215, 248, 310, 344, 430, 487, 620, 860, 974, 1240, 1333, 1720, 1948, 2435, 2666, 3896, 4870, 5332, 6665, 9740, 10664, 13330, 15097, 19480, 20941, 26660, 30194, 41882, 53320, 60388, 75485, 83764, 104705, 120776, 150970, 167528, 209410, 301940, 418820, 603880, 649171, 837640, 1298342, 2596684, 3245855, 5193368, 6491710, 12983420, 25966840]

約数ペア:

[(1, 25966840), (2, 12983420), (4, 6491710), (5, 5193368), (8, 3245855), (10, 2596684), (20, 1298342), (31, 837640), (40, 649171), (43, 603880), (62, 418820), (86, 301940), (124, 209410), (155, 167528), (172, 150970), (215, 120776), (248, 104705), (310, 83764), (344, 75485), (430, 60388), (487, 53320), (620, 41882), (860, 30194), (974, 26660), (1240, 20941), (1333, 19480), (1720, 15097), (1948, 13330), (2435, 10664), (2666, 9740), (3896, 6665), (4870, 5332)]