131219775

素因数分解:

$3^2\times 5^2\times {\mathrm{233}}^1\times {\mathrm{2503}}^1$

素因数の和:2752

約数の個数: 36

約数和(自身を含む): 236132208

約数和(自身を除く): 104912433

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 233, 699, 1165, 2097, 2503, 3495, 5825, 7509, 10485, 12515, 17475, 22527, 37545, 52425, 62575, 112635, 187725, 563175, 583199, 1749597, 2915995, 5248791, 8747985, 14579975, 26243955, 43739925, 131219775]

約数ペア:

[(1, 131219775), (3, 43739925), (5, 26243955), (9, 14579975), (15, 8747985), (25, 5248791), (45, 2915995), (75, 1749597), (225, 583199), (233, 563175), (699, 187725), (1165, 112635), (2097, 62575), (2503, 52425), (3495, 37545), (5825, 22527), (7509, 17475), (10485, 12515)]