30195920

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{4241}}^1$

素因数の和:4343

約数の個数: 40

約数和(自身を含む): 71011080

約数和(自身を除く): 40815160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 4241, 7120, 8482, 16964, 21205, 33928, 42410, 67856, 84820, 169640, 339280, 377449, 754898, 1509796, 1887245, 3019592, 3774490, 6039184, 7548980, 15097960, 30195920]

約数ペア:

[(1, 30195920), (2, 15097960), (4, 7548980), (5, 6039184), (8, 3774490), (10, 3019592), (16, 1887245), (20, 1509796), (40, 754898), (80, 377449), (89, 339280), (178, 169640), (356, 84820), (445, 67856), (712, 42410), (890, 33928), (1424, 21205), (1780, 16964), (3560, 8482), (4241, 7120)]