20830150

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^3\times {\mathrm{313}}^1$

素因数の和:358

約数の個数: 48

約数和(自身を含む): 42751728

約数和(自身を除く): 21921578

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 121, 242, 275, 313, 550, 605, 626, 1210, 1331, 1565, 2662, 3025, 3130, 3443, 6050, 6655, 6886, 7825, 13310, 15650, 17215, 33275, 34430, 37873, 66550, 75746, 86075, 172150, 189365, 378730, 416603, 833206, 946825, 1893650, 2083015, 4166030, 10415075, 20830150]

約数ペア:

[(1, 20830150), (2, 10415075), (5, 4166030), (10, 2083015), (11, 1893650), (22, 946825), (25, 833206), (50, 416603), (55, 378730), (110, 189365), (121, 172150), (242, 86075), (275, 75746), (313, 66550), (550, 37873), (605, 34430), (626, 33275), (1210, 17215), (1331, 15650), (1565, 13310), (2662, 7825), (3025, 6886), (3130, 6655), (3443, 6050)]