199389770

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{68993}}^1$

素因数の和:69034

約数の個数: 24

約数和(自身を含む): 381260844

約数和(自身を除く): 181871074

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 289, 578, 1445, 2890, 68993, 137986, 344965, 689930, 1172881, 2345762, 5864405, 11728810, 19938977, 39877954, 99694885, 199389770]

約数ペア:

[(1, 199389770), (2, 99694885), (5, 39877954), (10, 19938977), (17, 11728810), (34, 5864405), (85, 2345762), (170, 1172881), (289, 689930), (578, 344965), (1445, 137986), (2890, 68993)]