20163824

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{349}}^1$

素因数の和:537

約数の個数: 40

約数和(自身を含む): 41143200

約数和(自身を除く): 20979376

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 157, 184, 314, 349, 368, 628, 698, 1256, 1396, 2512, 2792, 3611, 5584, 7222, 8027, 14444, 16054, 28888, 32108, 54793, 57776, 64216, 109586, 128432, 219172, 438344, 876688, 1260239, 2520478, 5040956, 10081912, 20163824]

約数ペア:

[(1, 20163824), (2, 10081912), (4, 5040956), (8, 2520478), (16, 1260239), (23, 876688), (46, 438344), (92, 219172), (157, 128432), (184, 109586), (314, 64216), (349, 57776), (368, 54793), (628, 32108), (698, 28888), (1256, 16054), (1396, 14444), (2512, 8027), (2792, 7222), (3611, 5584)]