245173660

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{419}}^1\times {\mathrm{1721}}^1$

素因数の和:2166

約数の個数: 48

約数和(自身を含む): 546769440

約数和(自身を除く): 301595780

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 419, 838, 1676, 1721, 2095, 3442, 4190, 6884, 7123, 8380, 8605, 14246, 17210, 28492, 29257, 34420, 35615, 58514, 71230, 117028, 142460, 146285, 292570, 585140, 721099, 1442198, 2884396, 3605495, 7210990, 12258683, 14421980, 24517366, 49034732, 61293415, 122586830, 245173660]

約数ペア:

[(1, 245173660), (2, 122586830), (4, 61293415), (5, 49034732), (10, 24517366), (17, 14421980), (20, 12258683), (34, 7210990), (68, 3605495), (85, 2884396), (170, 1442198), (340, 721099), (419, 585140), (838, 292570), (1676, 146285), (1721, 142460), (2095, 117028), (3442, 71230), (4190, 58514), (6884, 35615), (7123, 34420), (8380, 29257), (8605, 28492), (14246, 17210)]