20624656

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{433}}^1$

素因数の和:683

約数の個数: 40

約数和(自身を含む): 43321880

約数和(自身を除く): 22697224

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 229, 433, 458, 866, 916, 1732, 1832, 2977, 3464, 3664, 5629, 5954, 6928, 11258, 11908, 22516, 23816, 45032, 47632, 90064, 99157, 198314, 396628, 793256, 1289041, 1586512, 2578082, 5156164, 10312328, 20624656]

約数ペア:

[(1, 20624656), (2, 10312328), (4, 5156164), (8, 2578082), (13, 1586512), (16, 1289041), (26, 793256), (52, 396628), (104, 198314), (208, 99157), (229, 90064), (433, 47632), (458, 45032), (866, 23816), (916, 22516), (1732, 11908), (1832, 11258), (2977, 6928), (3464, 5954), (3664, 5629)]