20846940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{11981}}^1$

素因数の和:12022

約数の個数: 48

約数和(自身を含む): 60389280

約数和(自身を除く): 39542340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 58, 60, 87, 116, 145, 174, 290, 348, 435, 580, 870, 1740, 11981, 23962, 35943, 47924, 59905, 71886, 119810, 143772, 179715, 239620, 347449, 359430, 694898, 718860, 1042347, 1389796, 1737245, 2084694, 3474490, 4169388, 5211735, 6948980, 10423470, 20846940]

約数ペア:

[(1, 20846940), (2, 10423470), (3, 6948980), (4, 5211735), (5, 4169388), (6, 3474490), (10, 2084694), (12, 1737245), (15, 1389796), (20, 1042347), (29, 718860), (30, 694898), (58, 359430), (60, 347449), (87, 239620), (116, 179715), (145, 143772), (174, 119810), (290, 71886), (348, 59905), (435, 47924), (580, 35943), (870, 23962), (1740, 11981)]