638543570

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{115469}}^1$

素因数の和:115562

約数の個数: 32

約数和(自身を含む): 1330214400

約数和(自身を除く): 691670830

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 79, 158, 395, 553, 790, 1106, 2765, 5530, 115469, 230938, 577345, 808283, 1154690, 1616566, 4041415, 8082830, 9122051, 18244102, 45610255, 63854357, 91220510, 127708714, 319271785, 638543570]

約数ペア:

[(1, 638543570), (2, 319271785), (5, 127708714), (7, 91220510), (10, 63854357), (14, 45610255), (35, 18244102), (70, 9122051), (79, 8082830), (158, 4041415), (395, 1616566), (553, 1154690), (790, 808283), (1106, 577345), (2765, 230938), (5530, 115469)]