20906250

素因数分解:

$2^1\times 3^1\times 5^6\times {\mathrm{223}}^1$

素因数の和:258

約数の個数: 56

約数和(自身を含む): 52499328

約数和(自身を除く): 31593078

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 125, 150, 223, 250, 375, 446, 625, 669, 750, 1115, 1250, 1338, 1875, 2230, 3125, 3345, 3750, 5575, 6250, 6690, 9375, 11150, 15625, 16725, 18750, 27875, 31250, 33450, 46875, 55750, 83625, 93750, 139375, 167250, 278750, 418125, 696875, 836250, 1393750, 2090625, 3484375, 4181250, 6968750, 10453125, 20906250]

約数ペア:

[(1, 20906250), (2, 10453125), (3, 6968750), (5, 4181250), (6, 3484375), (10, 2090625), (15, 1393750), (25, 836250), (30, 696875), (50, 418125), (75, 278750), (125, 167250), (150, 139375), (223, 93750), (250, 83625), (375, 55750), (446, 46875), (625, 33450), (669, 31250), (750, 27875), (1115, 18750), (1250, 16725), (1338, 15625), (1875, 11150), (2230, 9375), (3125, 6690), (3345, 6250), (3750, 5575)]