20454032

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1103}}^1$

素因数の和:1191

約数の個数: 40

約数和(自身を含む): 42437760

約数和(自身を除く): 21983728

約数列:

[1, 2, 4, 8, 16, 19, 38, 61, 76, 122, 152, 244, 304, 488, 976, 1103, 1159, 2206, 2318, 4412, 4636, 8824, 9272, 17648, 18544, 20957, 41914, 67283, 83828, 134566, 167656, 269132, 335312, 538264, 1076528, 1278377, 2556754, 5113508, 10227016, 20454032]

約数ペア:

[(1, 20454032), (2, 10227016), (4, 5113508), (8, 2556754), (16, 1278377), (19, 1076528), (38, 538264), (61, 335312), (76, 269132), (122, 167656), (152, 134566), (244, 83828), (304, 67283), (488, 41914), (976, 20957), (1103, 18544), (1159, 17648), (2206, 9272), (2318, 8824), (4412, 4636)]