199988545

素因数分解:

$5^1\times {\mathrm{149}}^1\times {\mathrm{331}}^1\times {\mathrm{811}}^1$

素因数の和:1296

約数の個数: 16

約数和(自身を含む): 242625600

約数和(自身を除く): 42637055

約数列:

[1, 5, 149, 331, 745, 811, 1655, 4055, 49319, 120839, 246595, 268441, 604195, 1342205, 39997709, 199988545]

約数ペア:

[(1, 199988545), (5, 39997709), (149, 1342205), (331, 604195), (745, 268441), (811, 246595), (1655, 120839), (4055, 49319)]