25563880

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{10477}}^1$

素因数の和:10549

約数の個数: 32

約数和(自身を含む): 58467240

約数和(自身を除く): 32903360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 10477, 20954, 41908, 52385, 83816, 104770, 209540, 419080, 639097, 1278194, 2556388, 3195485, 5112776, 6390970, 12781940, 25563880]

約数ペア:

[(1, 25563880), (2, 12781940), (4, 6390970), (5, 5112776), (8, 3195485), (10, 2556388), (20, 1278194), (40, 639097), (61, 419080), (122, 209540), (244, 104770), (305, 83816), (488, 52385), (610, 41908), (1220, 20954), (2440, 10477)]