30927500

素因数分解:

$2^2\times 5^4\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:252

約数の個数: 60

約数和(自身を含む): 68884200

約数和(自身を除く): 37956700

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 89, 100, 125, 139, 178, 250, 278, 356, 445, 500, 556, 625, 695, 890, 1250, 1390, 1780, 2225, 2500, 2780, 3475, 4450, 6950, 8900, 11125, 12371, 13900, 17375, 22250, 24742, 34750, 44500, 49484, 55625, 61855, 69500, 86875, 111250, 123710, 173750, 222500, 247420, 309275, 347500, 618550, 1237100, 1546375, 3092750, 6185500, 7731875, 15463750, 30927500]

約数ペア:

[(1, 30927500), (2, 15463750), (4, 7731875), (5, 6185500), (10, 3092750), (20, 1546375), (25, 1237100), (50, 618550), (89, 347500), (100, 309275), (125, 247420), (139, 222500), (178, 173750), (250, 123710), (278, 111250), (356, 86875), (445, 69500), (500, 61855), (556, 55625), (625, 49484), (695, 44500), (890, 34750), (1250, 24742), (1390, 22250), (1780, 17375), (2225, 13900), (2500, 12371), (2780, 11125), (3475, 8900), (4450, 6950)]