80515370

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{19979}}^1$

素因数の和:20030

約数の個数: 32

約数和(自身を含む): 161118720

約数和(自身を除く): 80603350

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 19979, 39958, 99895, 199790, 259727, 519454, 619349, 1238698, 1298635, 2597270, 3096745, 6193490, 8051537, 16103074, 40257685, 80515370]

約数ペア:

[(1, 80515370), (2, 40257685), (5, 16103074), (10, 8051537), (13, 6193490), (26, 3096745), (31, 2597270), (62, 1298635), (65, 1238698), (130, 619349), (155, 519454), (310, 259727), (403, 199790), (806, 99895), (2015, 39958), (4030, 19979)]