197649680

素因数分解:

$2^4\times 5^1\times {\mathrm{2470621}}^1$

素因数の和:2470634

約数の個数: 20

約数和(自身を含む): 459535692

約数和(自身を除く): 261886012

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2470621, 4941242, 9882484, 12353105, 19764968, 24706210, 39529936, 49412420, 98824840, 197649680]

約数ペア:

[(1, 197649680), (2, 98824840), (4, 49412420), (5, 39529936), (8, 24706210), (10, 19764968), (16, 12353105), (20, 9882484), (40, 4941242), (80, 2470621)]