251110470

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{643873}}^1$

素因数の和:643896

約数の個数: 32

約数和(自身を含む): 649024992

約数和(自身を除く): 397914522

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 643873, 1287746, 1931619, 3219365, 3863238, 6438730, 8370349, 9658095, 16740698, 19316190, 25111047, 41851745, 50222094, 83703490, 125555235, 251110470]

約数ペア:

[(1, 251110470), (2, 125555235), (3, 83703490), (5, 50222094), (6, 41851745), (10, 25111047), (13, 19316190), (15, 16740698), (26, 9658095), (30, 8370349), (39, 6438730), (65, 3863238), (78, 3219365), (130, 1931619), (195, 1287746), (390, 643873)]