393750

素因数分解:

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

素因数の和:40

約数の個数: 72

約数和(自身を含む): 1218672

約数和(自身を除く): 824922

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, 3125, 3150, 3750, 4375, 5250, 5625, 6250, 7875, 8750, 9375, 11250, 13125, 15750, 18750, 21875, 26250, 28125, 39375, 43750, 56250, 65625, 78750, 131250, 196875, 393750]

約数ペア:

[(1, 393750), (2, 196875), (3, 131250), (5, 78750), (6, 65625), (7, 56250), (9, 43750), (10, 39375), (14, 28125), (15, 26250), (18, 21875), (21, 18750), (25, 15750), (30, 13125), (35, 11250), (42, 9375), (45, 8750), (50, 7875), (63, 6250), (70, 5625), (75, 5250), (90, 4375), (105, 3750), (125, 3150), (126, 3125), (150, 2625), (175, 2250), (210, 1875), (225, 1750), (250, 1575), (315, 1250), (350, 1125), (375, 1050), (450, 875), (525, 750), (625, 630)]