2900540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{449}}^1$

素因数の和:494

約数の個数: 48

約数和(自身を含む): 6804000

約数和(自身を除く): 3903460

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 323, 340, 380, 449, 646, 898, 1292, 1615, 1796, 2245, 3230, 4490, 6460, 7633, 8531, 8980, 15266, 17062, 30532, 34124, 38165, 42655, 76330, 85310, 145027, 152660, 170620, 290054, 580108, 725135, 1450270, 2900540]

約数ペア:

[(1, 2900540), (2, 1450270), (4, 725135), (5, 580108), (10, 290054), (17, 170620), (19, 152660), (20, 145027), (34, 85310), (38, 76330), (68, 42655), (76, 38165), (85, 34124), (95, 30532), (170, 17062), (190, 15266), (323, 8980), (340, 8531), (380, 7633), (449, 6460), (646, 4490), (898, 3230), (1292, 2245), (1615, 1796)]