2564620

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{397}}^1$

素因数の和:442

約数の個数: 48

約数和(自身を含む): 6017760

約数和(自身を除く): 3453140

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 323, 340, 380, 397, 646, 794, 1292, 1588, 1615, 1985, 3230, 3970, 6460, 6749, 7543, 7940, 13498, 15086, 26996, 30172, 33745, 37715, 67490, 75430, 128231, 134980, 150860, 256462, 512924, 641155, 1282310, 2564620]

約数ペア:

[(1, 2564620), (2, 1282310), (4, 641155), (5, 512924), (10, 256462), (17, 150860), (19, 134980), (20, 128231), (34, 75430), (38, 67490), (68, 37715), (76, 33745), (85, 30172), (95, 26996), (170, 15086), (190, 13498), (323, 7940), (340, 7543), (380, 6749), (397, 6460), (646, 3970), (794, 3230), (1292, 1985), (1588, 1615)]