20958800

素因数分解:

$2^4\times 5^2\times {\mathrm{151}}^1\times {\mathrm{347}}^1$

素因数の和:516

約数の個数: 60

約数和(自身を含む): 50833056

約数和(自身を除く): 29874256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 151, 200, 302, 347, 400, 604, 694, 755, 1208, 1388, 1510, 1735, 2416, 2776, 3020, 3470, 3775, 5552, 6040, 6940, 7550, 8675, 12080, 13880, 15100, 17350, 27760, 30200, 34700, 52397, 60400, 69400, 104794, 138800, 209588, 261985, 419176, 523970, 838352, 1047940, 1309925, 2095880, 2619850, 4191760, 5239700, 10479400, 20958800]

約数ペア:

[(1, 20958800), (2, 10479400), (4, 5239700), (5, 4191760), (8, 2619850), (10, 2095880), (16, 1309925), (20, 1047940), (25, 838352), (40, 523970), (50, 419176), (80, 261985), (100, 209588), (151, 138800), (200, 104794), (302, 69400), (347, 60400), (400, 52397), (604, 34700), (694, 30200), (755, 27760), (1208, 17350), (1388, 15100), (1510, 13880), (1735, 12080), (2416, 8675), (2776, 7550), (3020, 6940), (3470, 6040), (3775, 5552)]