89470780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{641}}^1\times {\mathrm{997}}^1$

素因数の和:1654

約数の個数: 48

約数和(自身を含む): 215280576

約数和(自身を除く): 125809796

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 641, 997, 1282, 1994, 2564, 3205, 3988, 4487, 4985, 6410, 6979, 8974, 9970, 12820, 13958, 17948, 19940, 22435, 27916, 34895, 44870, 69790, 89740, 139580, 639077, 1278154, 2556308, 3195385, 4473539, 6390770, 8947078, 12781540, 17894156, 22367695, 44735390, 89470780]

約数ペア:

[(1, 89470780), (2, 44735390), (4, 22367695), (5, 17894156), (7, 12781540), (10, 8947078), (14, 6390770), (20, 4473539), (28, 3195385), (35, 2556308), (70, 1278154), (140, 639077), (641, 139580), (997, 89740), (1282, 69790), (1994, 44870), (2564, 34895), (3205, 27916), (3988, 22435), (4487, 19940), (4985, 17948), (6410, 13958), (6979, 12820), (8974, 9970)]