28258420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{4889}}^1$

素因数の和:4932

約数の個数: 36

約数和(自身を含む): 63051660

約数和(自身を除く): 34793240

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 289, 340, 578, 1156, 1445, 2890, 4889, 5780, 9778, 19556, 24445, 48890, 83113, 97780, 166226, 332452, 415565, 831130, 1412921, 1662260, 2825842, 5651684, 7064605, 14129210, 28258420]

約数ペア:

[(1, 28258420), (2, 14129210), (4, 7064605), (5, 5651684), (10, 2825842), (17, 1662260), (20, 1412921), (34, 831130), (68, 415565), (85, 332452), (170, 166226), (289, 97780), (340, 83113), (578, 48890), (1156, 24445), (1445, 19556), (2890, 9778), (4889, 5780)]