19123130

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{509}}^1$

素因数の和:563

約数の個数: 48

約数和(自身を含む): 39455640

約数和(自身を除く): 20332510

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 289, 442, 509, 578, 1018, 1105, 1445, 2210, 2545, 2890, 3757, 5090, 6617, 7514, 8653, 13234, 17306, 18785, 33085, 37570, 43265, 66170, 86530, 112489, 147101, 224978, 294202, 562445, 735505, 1124890, 1471010, 1912313, 3824626, 9561565, 19123130]

約数ペア:

[(1, 19123130), (2, 9561565), (5, 3824626), (10, 1912313), (13, 1471010), (17, 1124890), (26, 735505), (34, 562445), (65, 294202), (85, 224978), (130, 147101), (170, 112489), (221, 86530), (289, 66170), (442, 43265), (509, 37570), (578, 33085), (1018, 18785), (1105, 17306), (1445, 13234), (2210, 8653), (2545, 7514), (2890, 6617), (3757, 5090)]