20864090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{8447}}^1$

素因数の和:8486

約数の個数: 32

約数和(自身を含む): 42577920

約数和(自身を除く): 21713830

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 494, 1235, 2470, 8447, 16894, 42235, 84470, 109811, 160493, 219622, 320986, 549055, 802465, 1098110, 1604930, 2086409, 4172818, 10432045, 20864090]

約数ペア:

[(1, 20864090), (2, 10432045), (5, 4172818), (10, 2086409), (13, 1604930), (19, 1098110), (26, 802465), (38, 549055), (65, 320986), (95, 219622), (130, 160493), (190, 109811), (247, 84470), (494, 42235), (1235, 16894), (2470, 8447)]