20413860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{313}}^1\times {\mathrm{1087}}^1$

素因数の和:1412

約数の個数: 48

約数和(自身を含む): 57394176

約数和(自身を除く): 36980316

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 313, 626, 939, 1087, 1252, 1565, 1878, 2174, 3130, 3261, 3756, 4348, 4695, 5435, 6260, 6522, 9390, 10870, 13044, 16305, 18780, 21740, 32610, 65220, 340231, 680462, 1020693, 1360924, 1701155, 2041386, 3402310, 4082772, 5103465, 6804620, 10206930, 20413860]

約数ペア:

[(1, 20413860), (2, 10206930), (3, 6804620), (4, 5103465), (5, 4082772), (6, 3402310), (10, 2041386), (12, 1701155), (15, 1360924), (20, 1020693), (30, 680462), (60, 340231), (313, 65220), (626, 32610), (939, 21740), (1087, 18780), (1252, 16305), (1565, 13044), (1878, 10870), (2174, 9390), (3130, 6522), (3261, 6260), (3756, 5435), (4348, 4695)]