261640990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{521}}^1\times {\mathrm{3863}}^1$

素因数の和:4404

約数の個数: 32

約数和(自身を含む): 508286016

約数和(自身を除く): 246645026

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 521, 1042, 2605, 3863, 5210, 6773, 7726, 13546, 19315, 33865, 38630, 50219, 67730, 100438, 251095, 502190, 2012623, 4025246, 10063115, 20126230, 26164099, 52328198, 130820495, 261640990]

約数ペア:

[(1, 261640990), (2, 130820495), (5, 52328198), (10, 26164099), (13, 20126230), (26, 10063115), (65, 4025246), (130, 2012623), (521, 502190), (1042, 251095), (2605, 100438), (3863, 67730), (5210, 50219), (6773, 38630), (7726, 33865), (13546, 19315)]