85505860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{89}}^1\times {\mathrm{397}}^1$

素因数の和:517

約数の個数: 72

約数和(自身を含む): 200090520

約数和(自身を除く): 114584660

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 89, 110, 121, 178, 220, 242, 356, 397, 445, 484, 605, 794, 890, 979, 1210, 1588, 1780, 1958, 1985, 2420, 3916, 3970, 4367, 4895, 7940, 8734, 9790, 10769, 17468, 19580, 21538, 21835, 35333, 43076, 43670, 48037, 53845, 70666, 87340, 96074, 107690, 141332, 176665, 192148, 215380, 240185, 353330, 388663, 480370, 706660, 777326, 960740, 1554652, 1943315, 3886630, 4275293, 7773260, 8550586, 17101172, 21376465, 42752930, 85505860]

約数ペア:

[(1, 85505860), (2, 42752930), (4, 21376465), (5, 17101172), (10, 8550586), (11, 7773260), (20, 4275293), (22, 3886630), (44, 1943315), (55, 1554652), (89, 960740), (110, 777326), (121, 706660), (178, 480370), (220, 388663), (242, 353330), (356, 240185), (397, 215380), (445, 192148), (484, 176665), (605, 141332), (794, 107690), (890, 96074), (979, 87340), (1210, 70666), (1588, 53845), (1780, 48037), (1958, 43670), (1985, 43076), (2420, 35333), (3916, 21835), (3970, 21538), (4367, 19580), (4895, 17468), (7940, 10769), (8734, 9790)]