18618740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{7823}}^1$

素因数の和:7856

約数の個数: 48

約数和(自身を含む): 47319552

約数和(自身を除く): 28700812

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 340, 476, 595, 1190, 2380, 7823, 15646, 31292, 39115, 54761, 78230, 109522, 132991, 156460, 219044, 265982, 273805, 531964, 547610, 664955, 930937, 1095220, 1329910, 1861874, 2659820, 3723748, 4654685, 9309370, 18618740]

約数ペア:

[(1, 18618740), (2, 9309370), (4, 4654685), (5, 3723748), (7, 2659820), (10, 1861874), (14, 1329910), (17, 1095220), (20, 930937), (28, 664955), (34, 547610), (35, 531964), (68, 273805), (70, 265982), (85, 219044), (119, 156460), (140, 132991), (170, 109522), (238, 78230), (340, 54761), (476, 39115), (595, 31292), (1190, 15646), (2380, 7823)]