26400560

素因数分解:

$2^4\times 5^1\times {\mathrm{331}}^1\times {\mathrm{997}}^1$

素因数の和:1341

約数の個数: 40

約数和(自身を含む): 61628496

約数和(自身を除く): 35227936

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 331, 662, 997, 1324, 1655, 1994, 2648, 3310, 3988, 4985, 5296, 6620, 7976, 9970, 13240, 15952, 19940, 26480, 39880, 79760, 330007, 660014, 1320028, 1650035, 2640056, 3300070, 5280112, 6600140, 13200280, 26400560]

約数ペア:

[(1, 26400560), (2, 13200280), (4, 6600140), (5, 5280112), (8, 3300070), (10, 2640056), (16, 1650035), (20, 1320028), (40, 660014), (80, 330007), (331, 79760), (662, 39880), (997, 26480), (1324, 19940), (1655, 15952), (1994, 13240), (2648, 9970), (3310, 7976), (3988, 6620), (4985, 5296)]