80808560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{1277}}^1$

素因数の和:1410

約数の個数: 80

約数和(自身を含む): 216789696

約数和(自身を除く): 135981136

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 113, 140, 226, 280, 452, 560, 565, 791, 904, 1130, 1277, 1582, 1808, 2260, 2554, 3164, 3955, 4520, 5108, 6328, 6385, 7910, 8939, 9040, 10216, 12656, 12770, 15820, 17878, 20432, 25540, 31640, 35756, 44695, 51080, 63280, 71512, 89390, 102160, 143024, 144301, 178780, 288602, 357560, 577204, 715120, 721505, 1010107, 1154408, 1443010, 2020214, 2308816, 2886020, 4040428, 5050535, 5772040, 8080856, 10101070, 11544080, 16161712, 20202140, 40404280, 80808560]

約数ペア:

[(1, 80808560), (2, 40404280), (4, 20202140), (5, 16161712), (7, 11544080), (8, 10101070), (10, 8080856), (14, 5772040), (16, 5050535), (20, 4040428), (28, 2886020), (35, 2308816), (40, 2020214), (56, 1443010), (70, 1154408), (80, 1010107), (112, 721505), (113, 715120), (140, 577204), (226, 357560), (280, 288602), (452, 178780), (560, 144301), (565, 143024), (791, 102160), (904, 89390), (1130, 71512), (1277, 63280), (1582, 51080), (1808, 44695), (2260, 35756), (2554, 31640), (3164, 25540), (3955, 20432), (4520, 17878), (5108, 15820), (6328, 12770), (6385, 12656), (7910, 10216), (8939, 9040)]