291209620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1021}}^1\times {\mathrm{1097}}^1$

素因数の和:2140

約数の個数: 48

約数和(自身を含む): 659827728

約数和(自身を除く): 368618108

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1021, 1097, 2042, 2194, 4084, 4388, 5105, 5485, 10210, 10970, 13273, 14261, 20420, 21940, 26546, 28522, 53092, 57044, 66365, 71305, 132730, 142610, 265460, 285220, 1120037, 2240074, 4480148, 5600185, 11200370, 14560481, 22400740, 29120962, 58241924, 72802405, 145604810, 291209620]

約数ペア:

[(1, 291209620), (2, 145604810), (4, 72802405), (5, 58241924), (10, 29120962), (13, 22400740), (20, 14560481), (26, 11200370), (52, 5600185), (65, 4480148), (130, 2240074), (260, 1120037), (1021, 285220), (1097, 265460), (2042, 142610), (2194, 132730), (4084, 71305), (4388, 66365), (5105, 57044), (5485, 53092), (10210, 28522), (10970, 26546), (13273, 21940), (14261, 20420)]