257250

素因数分解:

$2^1\times 3^1\times 5^3\times 7^3$

素因数の和:41

約数の個数: 64

約数和(自身を含む): 748800

約数和(自身を除く): 491550

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 25, 30, 35, 42, 49, 50, 70, 75, 98, 105, 125, 147, 150, 175, 210, 245, 250, 294, 343, 350, 375, 490, 525, 686, 735, 750, 875, 1029, 1050, 1225, 1470, 1715, 1750, 2058, 2450, 2625, 3430, 3675, 5145, 5250, 6125, 7350, 8575, 10290, 12250, 17150, 18375, 25725, 36750, 42875, 51450, 85750, 128625, 257250]

約数ペア:

[(1, 257250), (2, 128625), (3, 85750), (5, 51450), (6, 42875), (7, 36750), (10, 25725), (14, 18375), (15, 17150), (21, 12250), (25, 10290), (30, 8575), (35, 7350), (42, 6125), (49, 5250), (50, 5145), (70, 3675), (75, 3430), (98, 2625), (105, 2450), (125, 2058), (147, 1750), (150, 1715), (175, 1470), (210, 1225), (245, 1050), (250, 1029), (294, 875), (343, 750), (350, 735), (375, 686), (490, 525)]