208461715

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{18671}}^1$

素因数の和:18723

約数の個数: 32

約数和(自身を含む): 322652160

約数和(自身を除く): 114190445

約数列:

[1, 5, 7, 11, 29, 35, 55, 77, 145, 203, 319, 385, 1015, 1595, 2233, 11165, 18671, 93355, 130697, 205381, 541459, 653485, 1026905, 1437667, 2707295, 3790213, 5956049, 7188335, 18951065, 29780245, 41692343, 208461715]

約数ペア:

[(1, 208461715), (5, 41692343), (7, 29780245), (11, 18951065), (29, 7188335), (35, 5956049), (55, 3790213), (77, 2707295), (145, 1437667), (203, 1026905), (319, 653485), (385, 541459), (1015, 205381), (1595, 130697), (2233, 93355), (11165, 18671)]