20492175

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{421}}^1$

素因数の和:504

約数の個数: 48

約数和(自身を含む): 37676160

約数和(自身を除く): 17183985

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 59, 75, 165, 177, 275, 295, 421, 649, 825, 885, 1263, 1475, 1947, 2105, 3245, 4425, 4631, 6315, 9735, 10525, 13893, 16225, 23155, 24839, 31575, 48675, 69465, 74517, 115775, 124195, 273229, 347325, 372585, 620975, 819687, 1366145, 1862925, 4098435, 6830725, 20492175]

約数ペア:

[(1, 20492175), (3, 6830725), (5, 4098435), (11, 1862925), (15, 1366145), (25, 819687), (33, 620975), (55, 372585), (59, 347325), (75, 273229), (165, 124195), (177, 115775), (275, 74517), (295, 69465), (421, 48675), (649, 31575), (825, 24839), (885, 23155), (1263, 16225), (1475, 13893), (1947, 10525), (2105, 9735), (3245, 6315), (4425, 4631)]