19958420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{32191}}^1$

素因数の和:32231

約数の個数: 24

約数和(自身を含む): 43266048

約数和(自身を除く): 23307628

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 32191, 64382, 128764, 160955, 321910, 643820, 997921, 1995842, 3991684, 4989605, 9979210, 19958420]

約数ペア:

[(1, 19958420), (2, 9979210), (4, 4989605), (5, 3991684), (10, 1995842), (20, 997921), (31, 643820), (62, 321910), (124, 160955), (155, 128764), (310, 64382), (620, 32191)]