81100540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{238531}}^1$

素因数の和:238557

約数の個数: 24

約数和(自身を含む): 180330192

約数和(自身を除く): 99229652

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 238531, 477062, 954124, 1192655, 2385310, 4055027, 4770620, 8110054, 16220108, 20275135, 40550270, 81100540]

約数ペア:

[(1, 81100540), (2, 40550270), (4, 20275135), (5, 16220108), (10, 8110054), (17, 4770620), (20, 4055027), (34, 2385310), (68, 1192655), (85, 954124), (170, 477062), (340, 238531)]