28205121060

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1127303}}^1$

素因数の和:1127457

約数の個数: 72

約数和(自身を含む): 86171117760

約数和(自身を除く): 57965996700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 139, 180, 278, 417, 556, 695, 834, 1251, 1390, 1668, 2085, 2502, 2780, 4170, 5004, 6255, 8340, 12510, 25020, 1127303, 2254606, 3381909, 4509212, 5636515, 6763818, 10145727, 11273030, 13527636, 16909545, 20291454, 22546060, 33819090, 40582908, 50728635, 67638180, 101457270, 156695117, 202914540, 313390234, 470085351, 626780468, 783475585, 940170702, 1410256053, 1566951170, 1880341404, 2350426755, 2820512106, 3133902340, 4700853510, 5641024212, 7051280265, 9401707020, 14102560530, 28205121060]

約数ペア:

[(1, 28205121060), (2, 14102560530), (3, 9401707020), (4, 7051280265), (5, 5641024212), (6, 4700853510), (9, 3133902340), (10, 2820512106), (12, 2350426755), (15, 1880341404), (18, 1566951170), (20, 1410256053), (30, 940170702), (36, 783475585), (45, 626780468), (60, 470085351), (90, 313390234), (139, 202914540), (180, 156695117), (278, 101457270), (417, 67638180), (556, 50728635), (695, 40582908), (834, 33819090), (1251, 22546060), (1390, 20291454), (1668, 16909545), (2085, 13527636), (2502, 11273030), (2780, 10145727), (4170, 6763818), (5004, 5636515), (6255, 4509212), (8340, 3381909), (12510, 2254606), (25020, 1127303)]