68638760

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{13099}}^1$

素因数の和:13241

約数の個数: 32

約数和(自身を含む): 155628000

約数和(自身を除く): 86989240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 13099, 26198, 52396, 65495, 104792, 130990, 261980, 523960, 1715969, 3431938, 6863876, 8579845, 13727752, 17159690, 34319380, 68638760]

約数ペア:

[(1, 68638760), (2, 34319380), (4, 17159690), (5, 13727752), (8, 8579845), (10, 6863876), (20, 3431938), (40, 1715969), (131, 523960), (262, 261980), (524, 130990), (655, 104792), (1048, 65495), (1310, 52396), (2620, 26198), (5240, 13099)]