12983420

素因数分解:

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

素因数の和:570

約数の個数: 48

約数和(自身を含む): 28858368

約数和(自身を除く): 15874948

約数列:

[1, 2, 4, 5, 10, 20, 31, 43, 62, 86, 124, 155, 172, 215, 310, 430, 487, 620, 860, 974, 1333, 1948, 2435, 2666, 4870, 5332, 6665, 9740, 13330, 15097, 20941, 26660, 30194, 41882, 60388, 75485, 83764, 104705, 150970, 209410, 301940, 418820, 649171, 1298342, 2596684, 3245855, 6491710, 12983420]

約数ペア:

[(1, 12983420), (2, 6491710), (4, 3245855), (5, 2596684), (10, 1298342), (20, 649171), (31, 418820), (43, 301940), (62, 209410), (86, 150970), (124, 104705), (155, 83764), (172, 75485), (215, 60388), (310, 41882), (430, 30194), (487, 26660), (620, 20941), (860, 15097), (974, 13330), (1333, 9740), (1948, 6665), (2435, 5332), (2666, 4870)]