28810180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{2819}}^1$

素因数の和:2908

約数の個数: 48

約数和(自身を含む): 70116480

約数和(自身を除く): 41306300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 73, 140, 146, 292, 365, 511, 730, 1022, 1460, 2044, 2555, 2819, 5110, 5638, 10220, 11276, 14095, 19733, 28190, 39466, 56380, 78932, 98665, 197330, 205787, 394660, 411574, 823148, 1028935, 1440509, 2057870, 2881018, 4115740, 5762036, 7202545, 14405090, 28810180]

約数ペア:

[(1, 28810180), (2, 14405090), (4, 7202545), (5, 5762036), (7, 4115740), (10, 2881018), (14, 2057870), (20, 1440509), (28, 1028935), (35, 823148), (70, 411574), (73, 394660), (140, 205787), (146, 197330), (292, 98665), (365, 78932), (511, 56380), (730, 39466), (1022, 28190), (1460, 19733), (2044, 14095), (2555, 11276), (2819, 10220), (5110, 5638)]