7540785721

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{251}}^1\times {\mathrm{1999}}^1$

素因数の和:2389

約数の個数: 32

約数和(自身を含む): 9192960000

約数和(自身を除く): 1652174279

約数列:

[1, 7, 19, 113, 133, 251, 791, 1757, 1999, 2147, 4769, 13993, 15029, 28363, 33383, 37981, 198541, 225887, 265867, 501749, 538897, 1581209, 3512243, 3772279, 4291853, 9533231, 30042971, 56697637, 66732617, 396883459, 1077255103, 7540785721]

約数ペア:

[(1, 7540785721), (7, 1077255103), (19, 396883459), (113, 66732617), (133, 56697637), (251, 30042971), (791, 9533231), (1757, 4291853), (1999, 3772279), (2147, 3512243), (4769, 1581209), (13993, 538897), (15029, 501749), (28363, 265867), (33383, 225887), (37981, 198541)]