18628760

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{307}}^1$

素因数の和:396

約数の個数: 64

約数和(自身を含む): 44241120

約数和(自身を除く): 25612360

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 41, 74, 82, 148, 164, 185, 205, 296, 307, 328, 370, 410, 614, 740, 820, 1228, 1480, 1517, 1535, 1640, 2456, 3034, 3070, 6068, 6140, 7585, 11359, 12136, 12280, 12587, 15170, 22718, 25174, 30340, 45436, 50348, 56795, 60680, 62935, 90872, 100696, 113590, 125870, 227180, 251740, 454360, 465719, 503480, 931438, 1862876, 2328595, 3725752, 4657190, 9314380, 18628760]

約数ペア:

[(1, 18628760), (2, 9314380), (4, 4657190), (5, 3725752), (8, 2328595), (10, 1862876), (20, 931438), (37, 503480), (40, 465719), (41, 454360), (74, 251740), (82, 227180), (148, 125870), (164, 113590), (185, 100696), (205, 90872), (296, 62935), (307, 60680), (328, 56795), (370, 50348), (410, 45436), (614, 30340), (740, 25174), (820, 22718), (1228, 15170), (1480, 12587), (1517, 12280), (1535, 12136), (1640, 11359), (2456, 7585), (3034, 6140), (3070, 6068)]