168302820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{400721}}^1$

素因数の和:400740

約数の個数: 48

約数和(自身を含む): 538570368

約数和(自身を除く): 370267548

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, 400721, 801442, 1202163, 1602884, 2003605, 2404326, 2805047, 4007210, 4808652, 5610094, 6010815, 8014420, 8415141, 11220188, 12021630, 14025235, 16830282, 24043260, 28050470, 33660564, 42075705, 56100940, 84151410, 168302820]

約数ペア:

[(1, 168302820), (2, 84151410), (3, 56100940), (4, 42075705), (5, 33660564), (6, 28050470), (7, 24043260), (10, 16830282), (12, 14025235), (14, 12021630), (15, 11220188), (20, 8415141), (21, 8014420), (28, 6010815), (30, 5610094), (35, 4808652), (42, 4007210), (60, 2805047), (70, 2404326), (84, 2003605), (105, 1602884), (140, 1202163), (210, 801442), (420, 400721)]