201990428540

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{67782023}}^1$

素因数の和:67782181

約数の個数: 24

約数和(自身を含む): 427026751200

約数和(自身を除く): 225036322660

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 67782023, 135564046, 271128092, 338910115, 677820230, 1355640460, 10099521427, 20199042854, 40398085708, 50497607135, 100995214270, 201990428540]

約数ペア:

[(1, 201990428540), (2, 100995214270), (4, 50497607135), (5, 40398085708), (10, 20199042854), (20, 10099521427), (149, 1355640460), (298, 677820230), (596, 338910115), (745, 271128092), (1490, 135564046), (2980, 67782023)]