30391480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{108541}}^1$

素因数の和:108559

約数の個数: 32

約数和(自身を含む): 78150240

約数和(自身を除く): 47758760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 108541, 217082, 434164, 542705, 759787, 868328, 1085410, 1519574, 2170820, 3039148, 3798935, 4341640, 6078296, 7597870, 15195740, 30391480]

約数ペア:

[(1, 30391480), (2, 15195740), (4, 7597870), (5, 6078296), (7, 4341640), (8, 3798935), (10, 3039148), (14, 2170820), (20, 1519574), (28, 1085410), (35, 868328), (40, 759787), (56, 542705), (70, 434164), (140, 217082), (280, 108541)]