28906745

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{241}}^1$

素因数の和:425

約数の個数: 32

約数和(自身を含む): 41817600

約数和(自身を除く): 12910855

約数列:

[1, 5, 7, 23, 35, 115, 149, 161, 241, 745, 805, 1043, 1205, 1687, 3427, 5215, 5543, 8435, 17135, 23989, 27715, 35909, 38801, 119945, 179545, 194005, 251363, 825907, 1256815, 4129535, 5781349, 28906745]

約数ペア:

[(1, 28906745), (5, 5781349), (7, 4129535), (23, 1256815), (35, 825907), (115, 251363), (149, 194005), (161, 179545), (241, 119945), (745, 38801), (805, 35909), (1043, 27715), (1205, 23989), (1687, 17135), (3427, 8435), (5215, 5543)]