128950020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{716389}}^1$

素因数の和:716404

約数の個数: 36

約数和(自身を含む): 391148940

約数和(自身を除く): 262198920

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 716389, 1432778, 2149167, 2865556, 3581945, 4298334, 6447501, 7163890, 8596668, 10745835, 12895002, 14327780, 21491670, 25790004, 32237505, 42983340, 64475010, 128950020]

約数ペア:

[(1, 128950020), (2, 64475010), (3, 42983340), (4, 32237505), (5, 25790004), (6, 21491670), (9, 14327780), (10, 12895002), (12, 10745835), (15, 8596668), (18, 7163890), (20, 6447501), (30, 4298334), (36, 3581945), (45, 2865556), (60, 2149167), (90, 1432778), (180, 716389)]