19740890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{11681}}^1$

素因数の和:11714

約数の個数: 24

約数和(自身を含む): 38480508

約数和(自身を除く): 18739618

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 11681, 23362, 58405, 116810, 151853, 303706, 759265, 1518530, 1974089, 3948178, 9870445, 19740890]

約数ペア:

[(1, 19740890), (2, 9870445), (5, 3948178), (10, 1974089), (13, 1518530), (26, 759265), (65, 303706), (130, 151853), (169, 116810), (338, 58405), (845, 23362), (1690, 11681)]