157712345

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{1061}}^1$

素因数の和:1241

約数の個数: 32

約数和(自身を含む): 225110016

約数和(自身を除く): 67397671

約数列:

[1, 5, 7, 31, 35, 137, 155, 217, 685, 959, 1061, 1085, 4247, 4795, 5305, 7427, 21235, 29729, 32891, 37135, 145357, 148645, 164455, 230237, 726785, 1017499, 1151185, 4506067, 5087495, 22530335, 31542469, 157712345]

約数ペア:

[(1, 157712345), (5, 31542469), (7, 22530335), (31, 5087495), (35, 4506067), (137, 1151185), (155, 1017499), (217, 726785), (685, 230237), (959, 164455), (1061, 148645), (1085, 145357), (4247, 37135), (4795, 32891), (5305, 29729), (7427, 21235)]