648889365

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{653}}^1\times {\mathrm{2137}}^1$

素因数の和:2829

約数の個数: 32

約数和(自身を含む): 1073857536

約数和(自身を除く): 424968171

約数列:

[1, 3, 5, 15, 31, 93, 155, 465, 653, 1959, 2137, 3265, 6411, 9795, 10685, 20243, 32055, 60729, 66247, 101215, 198741, 303645, 331235, 993705, 1395461, 4186383, 6977305, 20931915, 43259291, 129777873, 216296455, 648889365]

約数ペア:

[(1, 648889365), (3, 216296455), (5, 129777873), (15, 43259291), (31, 20931915), (93, 6977305), (155, 4186383), (465, 1395461), (653, 993705), (1959, 331235), (2137, 303645), (3265, 198741), (6411, 101215), (9795, 66247), (10685, 60729), (20243, 32055)]