18694390

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{769}}^1$

素因数の和:817

約数の個数: 64

約数和(自身を含む): 41912640

約数和(自身を除く): 23218250

約数列:

[1, 2, 5, 10, 11, 13, 17, 22, 26, 34, 55, 65, 85, 110, 130, 143, 170, 187, 221, 286, 374, 442, 715, 769, 935, 1105, 1430, 1538, 1870, 2210, 2431, 3845, 4862, 7690, 8459, 9997, 12155, 13073, 16918, 19994, 24310, 26146, 42295, 49985, 65365, 84590, 99970, 109967, 130730, 143803, 169949, 219934, 287606, 339898, 549835, 719015, 849745, 1099670, 1438030, 1699490, 1869439, 3738878, 9347195, 18694390]

約数ペア:

[(1, 18694390), (2, 9347195), (5, 3738878), (10, 1869439), (11, 1699490), (13, 1438030), (17, 1099670), (22, 849745), (26, 719015), (34, 549835), (55, 339898), (65, 287606), (85, 219934), (110, 169949), (130, 143803), (143, 130730), (170, 109967), (187, 99970), (221, 84590), (286, 65365), (374, 49985), (442, 42295), (715, 26146), (769, 24310), (935, 19994), (1105, 16918), (1430, 13073), (1538, 12155), (1870, 9997), (2210, 8459), (2431, 7690), (3845, 4862)]