279301340

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{4111}}^1$

素因数の和:4242

約数の個数: 48

約数和(自身を含む): 607918080

約数和(自身を除く): 328616740

約数列:

[1, 2, 4, 5, 10, 20, 43, 79, 86, 158, 172, 215, 316, 395, 430, 790, 860, 1580, 3397, 4111, 6794, 8222, 13588, 16444, 16985, 20555, 33970, 41110, 67940, 82220, 176773, 324769, 353546, 649538, 707092, 883865, 1299076, 1623845, 1767730, 3247690, 3535460, 6495380, 13965067, 27930134, 55860268, 69825335, 139650670, 279301340]

約数ペア:

[(1, 279301340), (2, 139650670), (4, 69825335), (5, 55860268), (10, 27930134), (20, 13965067), (43, 6495380), (79, 3535460), (86, 3247690), (158, 1767730), (172, 1623845), (215, 1299076), (316, 883865), (395, 707092), (430, 649538), (790, 353546), (860, 324769), (1580, 176773), (3397, 82220), (4111, 67940), (6794, 41110), (8222, 33970), (13588, 20555), (16444, 16985)]