688480

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{331}}^1$

素因数の和:359

約数の個数: 48

約数和(自身を含む): 1756944

約数和(自身を除く): 1068464

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 331, 416, 520, 662, 1040, 1324, 1655, 2080, 2648, 3310, 4303, 5296, 6620, 8606, 10592, 13240, 17212, 21515, 26480, 34424, 43030, 52960, 68848, 86060, 137696, 172120, 344240, 688480]

約数ペア:

[(1, 688480), (2, 344240), (4, 172120), (5, 137696), (8, 86060), (10, 68848), (13, 52960), (16, 43030), (20, 34424), (26, 26480), (32, 21515), (40, 17212), (52, 13240), (65, 10592), (80, 8606), (104, 6620), (130, 5296), (160, 4303), (208, 3310), (260, 2648), (331, 2080), (416, 1655), (520, 1324), (662, 1040)]