31195980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2441}}^1$

素因数の和:2527

約数の個数: 72

約数和(自身を含む): 95999904

約数和(自身を除く): 64803924

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 213, 284, 355, 426, 639, 710, 852, 1065, 1278, 1420, 2130, 2441, 2556, 3195, 4260, 4882, 6390, 7323, 9764, 12205, 12780, 14646, 21969, 24410, 29292, 36615, 43938, 48820, 73230, 87876, 109845, 146460, 173311, 219690, 346622, 439380, 519933, 693244, 866555, 1039866, 1559799, 1733110, 2079732, 2599665, 3119598, 3466220, 5199330, 6239196, 7798995, 10398660, 15597990, 31195980]

約数ペア:

[(1, 31195980), (2, 15597990), (3, 10398660), (4, 7798995), (5, 6239196), (6, 5199330), (9, 3466220), (10, 3119598), (12, 2599665), (15, 2079732), (18, 1733110), (20, 1559799), (30, 1039866), (36, 866555), (45, 693244), (60, 519933), (71, 439380), (90, 346622), (142, 219690), (180, 173311), (213, 146460), (284, 109845), (355, 87876), (426, 73230), (639, 48820), (710, 43938), (852, 36615), (1065, 29292), (1278, 24410), (1420, 21969), (2130, 14646), (2441, 12780), (2556, 12205), (3195, 9764), (4260, 7323), (4882, 6390)]