208621980

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{18397}}^1$

素因数の和:18425

約数の個数: 120

約数和(自身を含む): 747989088

約数和(自身を除く): 539367108

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 108, 126, 135, 140, 162, 180, 189, 210, 252, 270, 315, 324, 378, 405, 420, 540, 567, 630, 756, 810, 945, 1134, 1260, 1620, 1890, 2268, 2835, 3780, 5670, 11340, 18397, 36794, 55191, 73588, 91985, 110382, 128779, 165573, 183970, 220764, 257558, 275955, 331146, 367940, 386337, 496719, 515116, 551910, 643895, 662292, 772674, 827865, 993438, 1103820, 1159011, 1287790, 1490157, 1545348, 1655730, 1931685, 1986876, 2318022, 2483595, 2575580, 2980314, 3311460, 3477033, 3863370, 4636044, 4967190, 5795055, 5960628, 6954066, 7450785, 7726740, 9934380, 10431099, 11590110, 13908132, 14901570, 17385165, 20862198, 23180220, 29803140, 34770330, 41724396, 52155495, 69540660, 104310990, 208621980]

約数ペア:

[(1, 208621980), (2, 104310990), (3, 69540660), (4, 52155495), (5, 41724396), (6, 34770330), (7, 29803140), (9, 23180220), (10, 20862198), (12, 17385165), (14, 14901570), (15, 13908132), (18, 11590110), (20, 10431099), (21, 9934380), (27, 7726740), (28, 7450785), (30, 6954066), (35, 5960628), (36, 5795055), (42, 4967190), (45, 4636044), (54, 3863370), (60, 3477033), (63, 3311460), (70, 2980314), (81, 2575580), (84, 2483595), (90, 2318022), (105, 1986876), (108, 1931685), (126, 1655730), (135, 1545348), (140, 1490157), (162, 1287790), (180, 1159011), (189, 1103820), (210, 993438), (252, 827865), (270, 772674), (315, 662292), (324, 643895), (378, 551910), (405, 515116), (420, 496719), (540, 386337), (567, 367940), (630, 331146), (756, 275955), (810, 257558), (945, 220764), (1134, 183970), (1260, 165573), (1620, 128779), (1890, 110382), (2268, 91985), (2835, 73588), (3780, 55191), (5670, 36794), (11340, 18397)]