15881500

素因数分解:

$2^2\times 5^3\times {\mathrm{23}}^1\times {\mathrm{1381}}^1$

素因数の和:1423

約数の個数: 48

約数和(自身を含む): 36219456

約数和(自身を除く): 20337956

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 46, 50, 92, 100, 115, 125, 230, 250, 460, 500, 575, 1150, 1381, 2300, 2762, 2875, 5524, 5750, 6905, 11500, 13810, 27620, 31763, 34525, 63526, 69050, 127052, 138100, 158815, 172625, 317630, 345250, 635260, 690500, 794075, 1588150, 3176300, 3970375, 7940750, 15881500]

約数ペア:

[(1, 15881500), (2, 7940750), (4, 3970375), (5, 3176300), (10, 1588150), (20, 794075), (23, 690500), (25, 635260), (46, 345250), (50, 317630), (92, 172625), (100, 158815), (115, 138100), (125, 127052), (230, 69050), (250, 63526), (460, 34525), (500, 31763), (575, 27620), (1150, 13810), (1381, 11500), (2300, 6905), (2762, 5750), (2875, 5524)]