20202908

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{223}}^1$

素因数の和:338

約数の個数: 48

約数和(自身を含む): 40642560

約数和(自身を除く): 20439652

約数列:

[1, 2, 4, 11, 22, 29, 44, 58, 71, 116, 142, 223, 284, 319, 446, 638, 781, 892, 1276, 1562, 2059, 2453, 3124, 4118, 4906, 6467, 8236, 9812, 12934, 15833, 22649, 25868, 31666, 45298, 63332, 71137, 90596, 142274, 174163, 284548, 348326, 459157, 696652, 918314, 1836628, 5050727, 10101454, 20202908]

約数ペア:

[(1, 20202908), (2, 10101454), (4, 5050727), (11, 1836628), (22, 918314), (29, 696652), (44, 459157), (58, 348326), (71, 284548), (116, 174163), (142, 142274), (223, 90596), (284, 71137), (319, 63332), (446, 45298), (638, 31666), (781, 25868), (892, 22649), (1276, 15833), (1562, 12934), (2059, 9812), (2453, 8236), (3124, 6467), (4118, 4906)]