158409040

素因数分解:

$2^4\times 5^1\times {\mathrm{1980113}}^1$

素因数の和:1980126

約数の個数: 20

約数和(自身を含む): 368301204

約数和(自身を除く): 209892164

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1980113, 3960226, 7920452, 9900565, 15840904, 19801130, 31681808, 39602260, 79204520, 158409040]

約数ペア:

[(1, 158409040), (2, 79204520), (4, 39602260), (5, 31681808), (8, 19801130), (10, 15840904), (16, 9900565), (20, 7920452), (40, 3960226), (80, 1980113)]