20341360

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19559}}^1$

素因数の和:19585

約数の個数: 40

約数和(自身を含む): 50934240

約数和(自身を除く): 30592880

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 19559, 39118, 78236, 97795, 156472, 195590, 254267, 312944, 391180, 508534, 782360, 1017068, 1271335, 1564720, 2034136, 2542670, 4068272, 5085340, 10170680, 20341360]

約数ペア:

[(1, 20341360), (2, 10170680), (4, 5085340), (5, 4068272), (8, 2542670), (10, 2034136), (13, 1564720), (16, 1271335), (20, 1017068), (26, 782360), (40, 508534), (52, 391180), (65, 312944), (80, 254267), (104, 195590), (130, 156472), (208, 97795), (260, 78236), (520, 39118), (1040, 19559)]