855660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1097}}^1$

素因数の和:1122

約数の個数: 48

約数和(自身を含む): 2582496

約数和(自身を除く): 1726836

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 1097, 2194, 3291, 4388, 5485, 6582, 10970, 13164, 14261, 16455, 21940, 28522, 32910, 42783, 57044, 65820, 71305, 85566, 142610, 171132, 213915, 285220, 427830, 855660]

約数ペア:

[(1, 855660), (2, 427830), (3, 285220), (4, 213915), (5, 171132), (6, 142610), (10, 85566), (12, 71305), (13, 65820), (15, 57044), (20, 42783), (26, 32910), (30, 28522), (39, 21940), (52, 16455), (60, 14261), (65, 13164), (78, 10970), (130, 6582), (156, 5485), (195, 4388), (260, 3291), (390, 2194), (780, 1097)]