20847056

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{179}}^1\times {\mathrm{251}}^1$

素因数の和:467

約数の個数: 40

約数和(自身を含む): 42184800

約数和(自身を除く): 21337744

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 179, 232, 251, 358, 464, 502, 716, 1004, 1432, 2008, 2864, 4016, 5191, 7279, 10382, 14558, 20764, 29116, 41528, 44929, 58232, 83056, 89858, 116464, 179716, 359432, 718864, 1302941, 2605882, 5211764, 10423528, 20847056]

約数ペア:

[(1, 20847056), (2, 10423528), (4, 5211764), (8, 2605882), (16, 1302941), (29, 718864), (58, 359432), (116, 179716), (179, 116464), (232, 89858), (251, 83056), (358, 58232), (464, 44929), (502, 41528), (716, 29116), (1004, 20764), (1432, 14558), (2008, 10382), (2864, 7279), (4016, 5191)]