209018420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{383}}^1\times {\mathrm{2099}}^1$

素因数の和:2504

約数の個数: 48

約数和(自身を含む): 474163200

約数和(自身を除く): 265144780

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 383, 766, 1532, 1915, 2099, 3830, 4198, 4979, 7660, 8396, 9958, 10495, 19916, 20990, 24895, 27287, 41980, 49790, 54574, 99580, 109148, 136435, 272870, 545740, 803917, 1607834, 3215668, 4019585, 8039170, 10450921, 16078340, 20901842, 41803684, 52254605, 104509210, 209018420]

約数ペア:

[(1, 209018420), (2, 104509210), (4, 52254605), (5, 41803684), (10, 20901842), (13, 16078340), (20, 10450921), (26, 8039170), (52, 4019585), (65, 3215668), (130, 1607834), (260, 803917), (383, 545740), (766, 272870), (1532, 136435), (1915, 109148), (2099, 99580), (3830, 54574), (4198, 49790), (4979, 41980), (7660, 27287), (8396, 24895), (9958, 20990), (10495, 19916)]