20808211888

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{523}}^1\times {\mathrm{146273}}^1$

素因数の和:146821

約数の個数: 40

約数和(自身を含む): 42769347408

約数和(自身を除く): 21961135520

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 523, 1046, 2092, 4184, 8368, 8891, 17782, 35564, 71128, 142256, 146273, 292546, 585092, 1170184, 2340368, 2486641, 4973282, 9946564, 19893128, 39786256, 76500779, 153001558, 306003116, 612006232, 1224012464, 1300513243, 2601026486, 5202052972, 10404105944, 20808211888]

約数ペア:

[(1, 20808211888), (2, 10404105944), (4, 5202052972), (8, 2601026486), (16, 1300513243), (17, 1224012464), (34, 612006232), (68, 306003116), (136, 153001558), (272, 76500779), (523, 39786256), (1046, 19893128), (2092, 9946564), (4184, 4973282), (8368, 2486641), (8891, 2340368), (17782, 1170184), (35564, 585092), (71128, 292546), (142256, 146273)]