131989754

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{1973}}^1$

素因数の和:2102

約数の個数: 32

約数和(自身を含む): 222856704

約数和(自身を除く): 90866950

約数列:

[1, 2, 13, 26, 31, 62, 83, 166, 403, 806, 1079, 1973, 2158, 2573, 3946, 5146, 25649, 33449, 51298, 61163, 66898, 122326, 163759, 327518, 795119, 1590238, 2128867, 4257734, 5076529, 10153058, 65994877, 131989754]

約数ペア:

[(1, 131989754), (2, 65994877), (13, 10153058), (26, 5076529), (31, 4257734), (62, 2128867), (83, 1590238), (166, 795119), (403, 327518), (806, 163759), (1079, 122326), (1973, 66898), (2158, 61163), (2573, 51298), (3946, 33449), (5146, 25649)]