20128108

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{457}}^1$

素因数の和:503

約数の個数: 72

約数和(自身を含む): 47756576

約数和(自身を除く): 27628468

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 52, 77, 91, 121, 143, 154, 182, 242, 286, 308, 364, 457, 484, 572, 847, 914, 1001, 1573, 1694, 1828, 2002, 3146, 3199, 3388, 4004, 5027, 5941, 6292, 6398, 10054, 11011, 11882, 12796, 20108, 22022, 23764, 35189, 41587, 44044, 55297, 65351, 70378, 83174, 110594, 130702, 140756, 166348, 221188, 261404, 387079, 457457, 718861, 774158, 914914, 1437722, 1548316, 1829828, 2875444, 5032027, 10064054, 20128108]

約数ペア:

[(1, 20128108), (2, 10064054), (4, 5032027), (7, 2875444), (11, 1829828), (13, 1548316), (14, 1437722), (22, 914914), (26, 774158), (28, 718861), (44, 457457), (52, 387079), (77, 261404), (91, 221188), (121, 166348), (143, 140756), (154, 130702), (182, 110594), (242, 83174), (286, 70378), (308, 65351), (364, 55297), (457, 44044), (484, 41587), (572, 35189), (847, 23764), (914, 22022), (1001, 20108), (1573, 12796), (1694, 11882), (1828, 11011), (2002, 10054), (3146, 6398), (3199, 6292), (3388, 5941), (4004, 5027)]