218528360

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{227}}^1\times {\mathrm{587}}^1$

素因数の和:866

約数の個数: 64

約数和(自身を含む): 506761920

約数和(自身を除く): 288233560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 227, 328, 410, 454, 587, 820, 908, 1135, 1174, 1640, 1816, 2270, 2348, 2935, 4540, 4696, 5870, 9080, 9307, 11740, 18614, 23480, 24067, 37228, 46535, 48134, 74456, 93070, 96268, 120335, 133249, 186140, 192536, 240670, 266498, 372280, 481340, 532996, 666245, 962680, 1065992, 1332490, 2664980, 5329960, 5463209, 10926418, 21852836, 27316045, 43705672, 54632090, 109264180, 218528360]

約数ペア:

[(1, 218528360), (2, 109264180), (4, 54632090), (5, 43705672), (8, 27316045), (10, 21852836), (20, 10926418), (40, 5463209), (41, 5329960), (82, 2664980), (164, 1332490), (205, 1065992), (227, 962680), (328, 666245), (410, 532996), (454, 481340), (587, 372280), (820, 266498), (908, 240670), (1135, 192536), (1174, 186140), (1640, 133249), (1816, 120335), (2270, 96268), (2348, 93070), (2935, 74456), (4540, 48134), (4696, 46535), (5870, 37228), (9080, 24067), (9307, 23480), (11740, 18614)]