66828640

素因数分解:

$2^5\times 5^1\times {\mathrm{223}}^1\times {\mathrm{1873}}^1$

素因数の和:2111

約数の個数: 48

約数和(自身を含む): 158675328

約数和(自身を除く): 91846688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 223, 446, 892, 1115, 1784, 1873, 2230, 3568, 3746, 4460, 7136, 7492, 8920, 9365, 14984, 17840, 18730, 29968, 35680, 37460, 59936, 74920, 149840, 299680, 417679, 835358, 1670716, 2088395, 3341432, 4176790, 6682864, 8353580, 13365728, 16707160, 33414320, 66828640]

約数ペア:

[(1, 66828640), (2, 33414320), (4, 16707160), (5, 13365728), (8, 8353580), (10, 6682864), (16, 4176790), (20, 3341432), (32, 2088395), (40, 1670716), (80, 835358), (160, 417679), (223, 299680), (446, 149840), (892, 74920), (1115, 59936), (1784, 37460), (1873, 35680), (2230, 29968), (3568, 18730), (3746, 17840), (4460, 14984), (7136, 9365), (7492, 8920)]