81528208

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{811}}^1$

素因数の和:983

約数の個数: 40

約数和(自身を含む): 162309056

約数和(自身を除く): 80780848

約数列:

[1, 2, 4, 8, 16, 61, 103, 122, 206, 244, 412, 488, 811, 824, 976, 1622, 1648, 3244, 6283, 6488, 12566, 12976, 25132, 49471, 50264, 83533, 98942, 100528, 167066, 197884, 334132, 395768, 668264, 791536, 1336528, 5095513, 10191026, 20382052, 40764104, 81528208]

約数ペア:

[(1, 81528208), (2, 40764104), (4, 20382052), (8, 10191026), (16, 5095513), (61, 1336528), (103, 791536), (122, 668264), (206, 395768), (244, 334132), (412, 197884), (488, 167066), (811, 100528), (824, 98942), (976, 83533), (1622, 50264), (1648, 49471), (3244, 25132), (6283, 12976), (6488, 12566)]