2587880

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2087}}^1$

素因数の和:2129

約数の個数: 32

約数和(自身を含む): 6013440

約数和(自身を除く): 3425560

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 2087, 4174, 8348, 10435, 16696, 20870, 41740, 64697, 83480, 129394, 258788, 323485, 517576, 646970, 1293940, 2587880]

約数ペア:

[(1, 2587880), (2, 1293940), (4, 646970), (5, 517576), (8, 323485), (10, 258788), (20, 129394), (31, 83480), (40, 64697), (62, 41740), (124, 20870), (155, 16696), (248, 10435), (310, 8348), (620, 4174), (1240, 2087)]