20731777556

素因数分解:

$2^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{359}}^1\times {\mathrm{26107}}^1$

素因数の和:26556

約数の個数: 48

約数和(自身を含む): 42106982400

約数和(自身を除く): 21375204844

約数列:

[1, 2, 4, 7, 14, 28, 79, 158, 316, 359, 553, 718, 1106, 1436, 2212, 2513, 5026, 10052, 26107, 28361, 52214, 56722, 104428, 113444, 182749, 198527, 365498, 397054, 730996, 794108, 2062453, 4124906, 8249812, 9372413, 14437171, 18744826, 28874342, 37489652, 57748684, 65606891, 131213782, 262427564, 740420627, 1480841254, 2961682508, 5182944389, 10365888778, 20731777556]

約数ペア:

[(1, 20731777556), (2, 10365888778), (4, 5182944389), (7, 2961682508), (14, 1480841254), (28, 740420627), (79, 262427564), (158, 131213782), (316, 65606891), (359, 57748684), (553, 37489652), (718, 28874342), (1106, 18744826), (1436, 14437171), (2212, 9372413), (2513, 8249812), (5026, 4124906), (10052, 2062453), (26107, 794108), (28361, 730996), (52214, 397054), (56722, 365498), (104428, 198527), (113444, 182749)]