30980900

素因数分解:

$2^2\times 5^2\times {\mathrm{59}}^2\times {\mathrm{89}}^1$

素因数の和:221

約数の個数: 54

約数和(自身を含む): 69155730

約数和(自身を除く): 38174830

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 59, 89, 100, 118, 178, 236, 295, 356, 445, 590, 890, 1180, 1475, 1780, 2225, 2950, 3481, 4450, 5251, 5900, 6962, 8900, 10502, 13924, 17405, 21004, 26255, 34810, 52510, 69620, 87025, 105020, 131275, 174050, 262550, 309809, 348100, 525100, 619618, 1239236, 1549045, 3098090, 6196180, 7745225, 15490450, 30980900]

約数ペア:

[(1, 30980900), (2, 15490450), (4, 7745225), (5, 6196180), (10, 3098090), (20, 1549045), (25, 1239236), (50, 619618), (59, 525100), (89, 348100), (100, 309809), (118, 262550), (178, 174050), (236, 131275), (295, 105020), (356, 87025), (445, 69620), (590, 52510), (890, 34810), (1180, 26255), (1475, 21004), (1780, 17405), (2225, 13924), (2950, 10502), (3481, 8900), (4450, 6962), (5251, 5900)]