20168200

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{7757}}^1$

素因数の和:7786

約数の個数: 48

約数和(自身を含む): 50504580

約数和(自身を除く): 30336380

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 7757, 15514, 31028, 38785, 62056, 77570, 100841, 155140, 193925, 201682, 310280, 387850, 403364, 504205, 775700, 806728, 1008410, 1551400, 2016820, 2521025, 4033640, 5042050, 10084100, 20168200]

約数ペア:

[(1, 20168200), (2, 10084100), (4, 5042050), (5, 4033640), (8, 2521025), (10, 2016820), (13, 1551400), (20, 1008410), (25, 806728), (26, 775700), (40, 504205), (50, 403364), (52, 387850), (65, 310280), (100, 201682), (104, 193925), (130, 155140), (200, 100841), (260, 77570), (325, 62056), (520, 38785), (650, 31028), (1300, 15514), (2600, 7757)]