312620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1$

素因数の和:63

約数の個数: 72

約数和(自身を含む): 861840

約数和(自身を除く): 549220

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 29, 35, 44, 49, 55, 58, 70, 77, 98, 110, 116, 140, 145, 154, 196, 203, 220, 245, 290, 308, 319, 385, 406, 490, 539, 580, 638, 770, 812, 980, 1015, 1078, 1276, 1421, 1540, 1595, 2030, 2156, 2233, 2695, 2842, 3190, 4060, 4466, 5390, 5684, 6380, 7105, 8932, 10780, 11165, 14210, 15631, 22330, 28420, 31262, 44660, 62524, 78155, 156310, 312620]

約数ペア:

[(1, 312620), (2, 156310), (4, 78155), (5, 62524), (7, 44660), (10, 31262), (11, 28420), (14, 22330), (20, 15631), (22, 14210), (28, 11165), (29, 10780), (35, 8932), (44, 7105), (49, 6380), (55, 5684), (58, 5390), (70, 4466), (77, 4060), (98, 3190), (110, 2842), (116, 2695), (140, 2233), (145, 2156), (154, 2030), (196, 1595), (203, 1540), (220, 1421), (245, 1276), (290, 1078), (308, 1015), (319, 980), (385, 812), (406, 770), (490, 638), (539, 580)]