18859160

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{227}}^1$

素因数の和:336

約数の個数: 64

約数和(自身を含む): 44651520

約数和(自身を除く): 25792360

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 67, 124, 134, 155, 227, 248, 268, 310, 335, 454, 536, 620, 670, 908, 1135, 1240, 1340, 1816, 2077, 2270, 2680, 4154, 4540, 7037, 8308, 9080, 10385, 14074, 15209, 16616, 20770, 28148, 30418, 35185, 41540, 56296, 60836, 70370, 76045, 83080, 121672, 140740, 152090, 281480, 304180, 471479, 608360, 942958, 1885916, 2357395, 3771832, 4714790, 9429580, 18859160]

約数ペア:

[(1, 18859160), (2, 9429580), (4, 4714790), (5, 3771832), (8, 2357395), (10, 1885916), (20, 942958), (31, 608360), (40, 471479), (62, 304180), (67, 281480), (124, 152090), (134, 140740), (155, 121672), (227, 83080), (248, 76045), (268, 70370), (310, 60836), (335, 56296), (454, 41540), (536, 35185), (620, 30418), (670, 28148), (908, 20770), (1135, 16616), (1240, 15209), (1340, 14074), (1816, 10385), (2077, 9080), (2270, 8308), (2680, 7037), (4154, 4540)]