20456784

素因数分解:

$2^4\times 3^2\times {\mathrm{142061}}^1$

素因数の和:142075

約数の個数: 30

約数和(自身を含む): 57250986

約数和(自身を除く): 36794202

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 142061, 284122, 426183, 568244, 852366, 1136488, 1278549, 1704732, 2272976, 2557098, 3409464, 5114196, 6818928, 10228392, 20456784]

約数ペア:

[(1, 20456784), (2, 10228392), (3, 6818928), (4, 5114196), (6, 3409464), (8, 2557098), (9, 2272976), (12, 1704732), (16, 1278549), (18, 1136488), (24, 852366), (36, 568244), (48, 426183), (72, 284122), (144, 142061)]