7817420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{281}}^1$

素因数の和:410

約数の個数: 48

約数和(自身を含む): 17908128

約数和(自身を除く): 10090708

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 107, 130, 214, 260, 281, 428, 535, 562, 1070, 1124, 1391, 1405, 2140, 2782, 2810, 3653, 5564, 5620, 6955, 7306, 13910, 14612, 18265, 27820, 30067, 36530, 60134, 73060, 120268, 150335, 300670, 390871, 601340, 781742, 1563484, 1954355, 3908710, 7817420]

約数ペア:

[(1, 7817420), (2, 3908710), (4, 1954355), (5, 1563484), (10, 781742), (13, 601340), (20, 390871), (26, 300670), (52, 150335), (65, 120268), (107, 73060), (130, 60134), (214, 36530), (260, 30067), (281, 27820), (428, 18265), (535, 14612), (562, 13910), (1070, 7306), (1124, 6955), (1391, 5620), (1405, 5564), (2140, 3653), (2782, 2810)]