20428144

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{3137}}^1$

素因数の和:3193

約数の個数: 40

約数和(自身を含む): 44358768

約数和(自身を除く): 23930624

約数列:

[1, 2, 4, 8, 11, 16, 22, 37, 44, 74, 88, 148, 176, 296, 407, 592, 814, 1628, 3137, 3256, 6274, 6512, 12548, 25096, 34507, 50192, 69014, 116069, 138028, 232138, 276056, 464276, 552112, 928552, 1276759, 1857104, 2553518, 5107036, 10214072, 20428144]

約数ペア:

[(1, 20428144), (2, 10214072), (4, 5107036), (8, 2553518), (11, 1857104), (16, 1276759), (22, 928552), (37, 552112), (44, 464276), (74, 276056), (88, 232138), (148, 138028), (176, 116069), (296, 69014), (407, 50192), (592, 34507), (814, 25096), (1628, 12548), (3137, 6512), (3256, 6274)]