30398840

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{8539}}^1$

素因数の和:8639

約数の個数: 32

約数和(自身を含む): 69174000

約数和(自身を除く): 38775160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 8539, 17078, 34156, 42695, 68312, 85390, 170780, 341560, 759971, 1519942, 3039884, 3799855, 6079768, 7599710, 15199420, 30398840]

約数ペア:

[(1, 30398840), (2, 15199420), (4, 7599710), (5, 6079768), (8, 3799855), (10, 3039884), (20, 1519942), (40, 759971), (89, 341560), (178, 170780), (356, 85390), (445, 68312), (712, 42695), (890, 34156), (1780, 17078), (3560, 8539)]