20278472

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{1499}}^1$

素因数の和:1613

約数の個数: 32

約数和(自身を含む): 40500000

約数和(自身を除く): 20221528

約数列:

[1, 2, 4, 8, 19, 38, 76, 89, 152, 178, 356, 712, 1499, 1691, 2998, 3382, 5996, 6764, 11992, 13528, 28481, 56962, 113924, 133411, 227848, 266822, 533644, 1067288, 2534809, 5069618, 10139236, 20278472]

約数ペア:

[(1, 20278472), (2, 10139236), (4, 5069618), (8, 2534809), (19, 1067288), (38, 533644), (76, 266822), (89, 227848), (152, 133411), (178, 113924), (356, 56962), (712, 28481), (1499, 13528), (1691, 11992), (2998, 6764), (3382, 5996)]