19909210

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{83}}^2$

素因数の和:207

約数の個数: 36

約数和(自身を含む): 38532798

約数和(自身を除く): 18623588

約数列:

[1, 2, 5, 10, 17, 34, 83, 85, 166, 170, 289, 415, 578, 830, 1411, 1445, 2822, 2890, 6889, 7055, 13778, 14110, 23987, 34445, 47974, 68890, 117113, 119935, 234226, 239870, 585565, 1171130, 1990921, 3981842, 9954605, 19909210]

約数ペア:

[(1, 19909210), (2, 9954605), (5, 3981842), (10, 1990921), (17, 1171130), (34, 585565), (83, 239870), (85, 234226), (166, 119935), (170, 117113), (289, 68890), (415, 47974), (578, 34445), (830, 23987), (1411, 14110), (1445, 13778), (2822, 7055), (2890, 6889)]