78856220

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{1721}}^1$

素因数の和:1838

約数の個数: 48

約数和(自身を含む): 173577600

約数和(自身を除く): 94721380

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 79, 116, 145, 158, 290, 316, 395, 580, 790, 1580, 1721, 2291, 3442, 4582, 6884, 8605, 9164, 11455, 17210, 22910, 34420, 45820, 49909, 99818, 135959, 199636, 249545, 271918, 499090, 543836, 679795, 998180, 1359590, 2719180, 3942811, 7885622, 15771244, 19714055, 39428110, 78856220]

約数ペア:

[(1, 78856220), (2, 39428110), (4, 19714055), (5, 15771244), (10, 7885622), (20, 3942811), (29, 2719180), (58, 1359590), (79, 998180), (116, 679795), (145, 543836), (158, 499090), (290, 271918), (316, 249545), (395, 199636), (580, 135959), (790, 99818), (1580, 49909), (1721, 45820), (2291, 34420), (3442, 22910), (4582, 17210), (6884, 11455), (8605, 9164)]