128219650

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{197261}}^1$

素因数の和:197286

約数の個数: 24

約数和(自身を含む): 256835124

約数和(自身を除く): 128615474

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 197261, 394522, 986305, 1972610, 2564393, 4931525, 5128786, 9863050, 12821965, 25643930, 64109825, 128219650]

約数ペア:

[(1, 128219650), (2, 64109825), (5, 25643930), (10, 12821965), (13, 9863050), (25, 5128786), (26, 4931525), (50, 2564393), (65, 1972610), (130, 986305), (325, 394522), (650, 197261)]