28149365

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^2\times {\mathrm{89}}^1$

素因数の和:233

約数の個数: 24

約数和(自身を含む): 36770760

約数和(自身を除く): 8621395

約数列:

[1, 5, 17, 61, 85, 89, 305, 445, 1037, 1513, 3721, 5185, 5429, 7565, 18605, 27145, 63257, 92293, 316285, 331169, 461465, 1655845, 5629873, 28149365]

約数ペア:

[(1, 28149365), (5, 5629873), (17, 1655845), (61, 461465), (85, 331169), (89, 316285), (305, 92293), (445, 63257), (1037, 27145), (1513, 18605), (3721, 7565), (5185, 5429)]