281523710

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{69857}}^1$

素因数の和:69908

約数の個数: 32

約数和(自身を含む): 563334912

約数和(自身を除く): 281811202

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 69857, 139714, 349285, 698570, 908141, 1816282, 2165567, 4331134, 4540705, 9081410, 10827835, 21655670, 28152371, 56304742, 140761855, 281523710]

約数ペア:

[(1, 281523710), (2, 140761855), (5, 56304742), (10, 28152371), (13, 21655670), (26, 10827835), (31, 9081410), (62, 4540705), (65, 4331134), (130, 2165567), (155, 1816282), (310, 908141), (403, 698570), (806, 349285), (2015, 139714), (4030, 69857)]