78750

素因数分解:

$2^1\times 3^2\times 5^4\times 7^1$

素因数の和:35

約数の個数: 60

約数和(自身を含む): 243672

約数和(自身を除く): 164922

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 30, 35, 42, 45, 50, 63, 70, 75, 90, 105, 125, 126, 150, 175, 210, 225, 250, 315, 350, 375, 450, 525, 625, 630, 750, 875, 1050, 1125, 1250, 1575, 1750, 1875, 2250, 2625, 3150, 3750, 4375, 5250, 5625, 7875, 8750, 11250, 13125, 15750, 26250, 39375, 78750]

約数ペア:

[(1, 78750), (2, 39375), (3, 26250), (5, 15750), (6, 13125), (7, 11250), (9, 8750), (10, 7875), (14, 5625), (15, 5250), (18, 4375), (21, 3750), (25, 3150), (30, 2625), (35, 2250), (42, 1875), (45, 1750), (50, 1575), (63, 1250), (70, 1125), (75, 1050), (90, 875), (105, 750), (125, 630), (126, 625), (150, 525), (175, 450), (210, 375), (225, 350), (250, 315)]