20153175

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1669}}^1$

素因数の和:1712

約数の個数: 48

約数和(自身を含む): 39759360

約数和(自身を除く): 19606185

約数列:

[1, 3, 5, 7, 15, 21, 23, 25, 35, 69, 75, 105, 115, 161, 175, 345, 483, 525, 575, 805, 1669, 1725, 2415, 4025, 5007, 8345, 11683, 12075, 25035, 35049, 38387, 41725, 58415, 115161, 125175, 175245, 191935, 268709, 292075, 575805, 806127, 876225, 959675, 1343545, 2879025, 4030635, 6717725, 20153175]

約数ペア:

[(1, 20153175), (3, 6717725), (5, 4030635), (7, 2879025), (15, 1343545), (21, 959675), (23, 876225), (25, 806127), (35, 575805), (69, 292075), (75, 268709), (105, 191935), (115, 175245), (161, 125175), (175, 115161), (345, 58415), (483, 41725), (525, 38387), (575, 35049), (805, 25035), (1669, 12075), (1725, 11683), (2415, 8345), (4025, 5007)]