19720778872

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{1657}}^1\times {\mathrm{87511}}^1$

素因数の和:89191

約数の個数: 32

約数和(自身を含む): 39175621920

約数和(自身を除く): 19454843048

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 1657, 3314, 6628, 13256, 28169, 56338, 87511, 112676, 175022, 225352, 350044, 700088, 1487687, 2975374, 5950748, 11901496, 145005727, 290011454, 580022908, 1160045816, 2465097359, 4930194718, 9860389436, 19720778872]

約数ペア:

[(1, 19720778872), (2, 9860389436), (4, 4930194718), (8, 2465097359), (17, 1160045816), (34, 580022908), (68, 290011454), (136, 145005727), (1657, 11901496), (3314, 5950748), (6628, 2975374), (13256, 1487687), (28169, 700088), (56338, 350044), (87511, 225352), (112676, 175022)]