18351620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{2789}}^1$

素因数の和:2852

約数の個数: 48

約数和(自身を含む): 44997120

約数和(自身を除く): 26645500

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 94, 140, 188, 235, 329, 470, 658, 940, 1316, 1645, 2789, 3290, 5578, 6580, 11156, 13945, 19523, 27890, 39046, 55780, 78092, 97615, 131083, 195230, 262166, 390460, 524332, 655415, 917581, 1310830, 1835162, 2621660, 3670324, 4587905, 9175810, 18351620]

約数ペア:

[(1, 18351620), (2, 9175810), (4, 4587905), (5, 3670324), (7, 2621660), (10, 1835162), (14, 1310830), (20, 917581), (28, 655415), (35, 524332), (47, 390460), (70, 262166), (94, 195230), (140, 131083), (188, 97615), (235, 78092), (329, 55780), (470, 39046), (658, 27890), (940, 19523), (1316, 13945), (1645, 11156), (2789, 6580), (3290, 5578)]