20281392

素因数分解:

$2^4\times 3^2\times {\mathrm{127}}^1\times {\mathrm{1109}}^1$

素因数の和:1250

約数の個数: 60

約数和(自身を含む): 57258240

約数和(自身を除く): 36976848

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 127, 144, 254, 381, 508, 762, 1016, 1109, 1143, 1524, 2032, 2218, 2286, 3048, 3327, 4436, 4572, 6096, 6654, 8872, 9144, 9981, 13308, 17744, 18288, 19962, 26616, 39924, 53232, 79848, 140843, 159696, 281686, 422529, 563372, 845058, 1126744, 1267587, 1690116, 2253488, 2535174, 3380232, 5070348, 6760464, 10140696, 20281392]

約数ペア:

[(1, 20281392), (2, 10140696), (3, 6760464), (4, 5070348), (6, 3380232), (8, 2535174), (9, 2253488), (12, 1690116), (16, 1267587), (18, 1126744), (24, 845058), (36, 563372), (48, 422529), (72, 281686), (127, 159696), (144, 140843), (254, 79848), (381, 53232), (508, 39924), (762, 26616), (1016, 19962), (1109, 18288), (1143, 17744), (1524, 13308), (2032, 9981), (2218, 9144), (2286, 8872), (3048, 6654), (3327, 6096), (4436, 4572)]