30420880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{54323}}^1$

素因数の和:54343

約数の個数: 40

約数和(自身を含む): 80834112

約数和(自身を除く): 50413232

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 54323, 108646, 217292, 271615, 380261, 434584, 543230, 760522, 869168, 1086460, 1521044, 1901305, 2172920, 3042088, 3802610, 4345840, 6084176, 7605220, 15210440, 30420880]

約数ペア:

[(1, 30420880), (2, 15210440), (4, 7605220), (5, 6084176), (7, 4345840), (8, 3802610), (10, 3042088), (14, 2172920), (16, 1901305), (20, 1521044), (28, 1086460), (35, 869168), (40, 760522), (56, 543230), (70, 434584), (80, 380261), (112, 271615), (140, 217292), (280, 108646), (560, 54323)]