28135390

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{373}}^1\times {\mathrm{397}}^1$

素因数の和:796

約数の個数: 32

約数和(自身を含む): 53586720

約数和(自身を除く): 25451330

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 373, 397, 746, 794, 1865, 1985, 3730, 3970, 7087, 7543, 14174, 15086, 35435, 37715, 70870, 75430, 148081, 296162, 740405, 1480810, 2813539, 5627078, 14067695, 28135390]

約数ペア:

[(1, 28135390), (2, 14067695), (5, 5627078), (10, 2813539), (19, 1480810), (38, 740405), (95, 296162), (190, 148081), (373, 75430), (397, 70870), (746, 37715), (794, 35435), (1865, 15086), (1985, 14174), (3730, 7543), (3970, 7087)]