28438150

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{653}}^1$

素因数の和:745

約数の個数: 48

約数和(自身を含む): 57902544

約数和(自身を除く): 29464394

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 67, 130, 134, 325, 335, 650, 653, 670, 871, 1306, 1675, 1742, 3265, 3350, 4355, 6530, 8489, 8710, 16325, 16978, 21775, 32650, 42445, 43550, 43751, 84890, 87502, 212225, 218755, 424450, 437510, 568763, 1093775, 1137526, 2187550, 2843815, 5687630, 14219075, 28438150]

約数ペア:

[(1, 28438150), (2, 14219075), (5, 5687630), (10, 2843815), (13, 2187550), (25, 1137526), (26, 1093775), (50, 568763), (65, 437510), (67, 424450), (130, 218755), (134, 212225), (325, 87502), (335, 84890), (650, 43751), (653, 43550), (670, 42445), (871, 32650), (1306, 21775), (1675, 16978), (1742, 16325), (3265, 8710), (3350, 8489), (4355, 6530)]