28931690

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{1103}}^1$

素因数の和:1214

約数の個数: 32

約数和(自身を含む): 54210816

約数和(自身を除く): 25279126

約数列:

[1, 2, 5, 10, 43, 61, 86, 122, 215, 305, 430, 610, 1103, 2206, 2623, 5246, 5515, 11030, 13115, 26230, 47429, 67283, 94858, 134566, 237145, 336415, 474290, 672830, 2893169, 5786338, 14465845, 28931690]

約数ペア:

[(1, 28931690), (2, 14465845), (5, 5786338), (10, 2893169), (43, 672830), (61, 474290), (86, 336415), (122, 237145), (215, 134566), (305, 94858), (430, 67283), (610, 47429), (1103, 26230), (2206, 13115), (2623, 11030), (5246, 5515)]