81788140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{733}}^1\times {\mathrm{797}}^1$

素因数の和:1546

約数の個数: 48

約数和(自身を含む): 196805952

約数和(自身を除く): 115017812

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 733, 797, 1466, 1594, 2932, 3188, 3665, 3985, 5131, 5579, 7330, 7970, 10262, 11158, 14660, 15940, 20524, 22316, 25655, 27895, 51310, 55790, 102620, 111580, 584201, 1168402, 2336804, 2921005, 4089407, 5842010, 8178814, 11684020, 16357628, 20447035, 40894070, 81788140]

約数ペア:

[(1, 81788140), (2, 40894070), (4, 20447035), (5, 16357628), (7, 11684020), (10, 8178814), (14, 5842010), (20, 4089407), (28, 2921005), (35, 2336804), (70, 1168402), (140, 584201), (733, 111580), (797, 102620), (1466, 55790), (1594, 51310), (2932, 27895), (3188, 25655), (3665, 22316), (3985, 20524), (5131, 15940), (5579, 14660), (7330, 11158), (7970, 10262)]