164020720

素因数分解:

$2^4\times 5^1\times {\mathrm{167}}^1\times {\mathrm{12277}}^1$

素因数の和:12457

約数の個数: 40

約数和(自身を含む): 383662944

約数和(自身を除く): 219642224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 167, 334, 668, 835, 1336, 1670, 2672, 3340, 6680, 12277, 13360, 24554, 49108, 61385, 98216, 122770, 196432, 245540, 491080, 982160, 2050259, 4100518, 8201036, 10251295, 16402072, 20502590, 32804144, 41005180, 82010360, 164020720]

約数ペア:

[(1, 164020720), (2, 82010360), (4, 41005180), (5, 32804144), (8, 20502590), (10, 16402072), (16, 10251295), (20, 8201036), (40, 4100518), (80, 2050259), (167, 982160), (334, 491080), (668, 245540), (835, 196432), (1336, 122770), (1670, 98216), (2672, 61385), (3340, 49108), (6680, 24554), (12277, 13360)]