28157185

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{1279}}^1$

素因数の和:1345

約数の個数: 32

約数和(自身を含む): 42024960

約数和(自身を除く): 13867775

約数列:

[1, 5, 7, 17, 35, 37, 85, 119, 185, 259, 595, 629, 1279, 1295, 3145, 4403, 6395, 8953, 21743, 22015, 44765, 47323, 108715, 152201, 236615, 331261, 761005, 804491, 1656305, 4022455, 5631437, 28157185]

約数ペア:

[(1, 28157185), (5, 5631437), (7, 4022455), (17, 1656305), (35, 804491), (37, 761005), (85, 331261), (119, 236615), (185, 152201), (259, 108715), (595, 47323), (629, 44765), (1279, 22015), (1295, 21743), (3145, 8953), (4403, 6395)]