20778064

素因数分解:

$2^4\times {\mathrm{61}}^2\times {\mathrm{349}}^1$

素因数の和:479

約数の個数: 30

約数和(自身を含む): 41045550

約数和(自身を除く): 20267486

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 349, 488, 698, 976, 1396, 2792, 3721, 5584, 7442, 14884, 21289, 29768, 42578, 59536, 85156, 170312, 340624, 1298629, 2597258, 5194516, 10389032, 20778064]

約数ペア:

[(1, 20778064), (2, 10389032), (4, 5194516), (8, 2597258), (16, 1298629), (61, 340624), (122, 170312), (244, 85156), (349, 59536), (488, 42578), (698, 29768), (976, 21289), (1396, 14884), (2792, 7442), (3721, 5584)]