315302820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{750721}}^1$

素因数の和:750740

約数の個数: 48

約数和(自身を含む): 1008970368

約数和(自身を除く): 693667548

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 750721, 1501442, 2252163, 3002884, 3753605, 4504326, 5255047, 7507210, 9008652, 10510094, 11260815, 15014420, 15765141, 21020188, 22521630, 26275235, 31530282, 45043260, 52550470, 63060564, 78825705, 105100940, 157651410, 315302820]

約数ペア:

[(1, 315302820), (2, 157651410), (3, 105100940), (4, 78825705), (5, 63060564), (6, 52550470), (7, 45043260), (10, 31530282), (12, 26275235), (14, 22521630), (15, 21020188), (20, 15765141), (21, 15014420), (28, 11260815), (30, 10510094), (35, 9008652), (42, 7507210), (60, 5255047), (70, 4504326), (84, 3753605), (105, 3002884), (140, 2252163), (210, 1501442), (420, 750721)]