26278520

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{487}}^1$

素因数の和:588

約数の個数: 64

約数和(自身を含む): 63244800

約数和(自身を除く): 36966280

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 71, 76, 95, 142, 152, 190, 284, 355, 380, 487, 568, 710, 760, 974, 1349, 1420, 1948, 2435, 2698, 2840, 3896, 4870, 5396, 6745, 9253, 9740, 10792, 13490, 18506, 19480, 26980, 34577, 37012, 46265, 53960, 69154, 74024, 92530, 138308, 172885, 185060, 276616, 345770, 370120, 656963, 691540, 1313926, 1383080, 2627852, 3284815, 5255704, 6569630, 13139260, 26278520]

約数ペア:

[(1, 26278520), (2, 13139260), (4, 6569630), (5, 5255704), (8, 3284815), (10, 2627852), (19, 1383080), (20, 1313926), (38, 691540), (40, 656963), (71, 370120), (76, 345770), (95, 276616), (142, 185060), (152, 172885), (190, 138308), (284, 92530), (355, 74024), (380, 69154), (487, 53960), (568, 46265), (710, 37012), (760, 34577), (974, 26980), (1349, 19480), (1420, 18506), (1948, 13490), (2435, 10792), (2698, 9740), (2840, 9253), (3896, 6745), (4870, 5396)]