20386890

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{25169}}^1$

素因数の和:25188

約数の個数: 40

約数和(自身を含む): 54820260

約数和(自身を除く): 34433370

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810, 25169, 50338, 75507, 125845, 151014, 226521, 251690, 377535, 453042, 679563, 755070, 1132605, 1359126, 2038689, 2265210, 3397815, 4077378, 6795630, 10193445, 20386890]

約数ペア:

[(1, 20386890), (2, 10193445), (3, 6795630), (5, 4077378), (6, 3397815), (9, 2265210), (10, 2038689), (15, 1359126), (18, 1132605), (27, 755070), (30, 679563), (45, 453042), (54, 377535), (81, 251690), (90, 226521), (135, 151014), (162, 125845), (270, 75507), (405, 50338), (810, 25169)]