161720890

素因数分解:

$2^1\times 5^1\times {\mathrm{47}}^2\times {\mathrm{7321}}^1$

素因数の和:7422

約数の個数: 24

約数和(自身を含む): 297463572

約数和(自身を除く): 135742682

約数列:

[1, 2, 5, 10, 47, 94, 235, 470, 2209, 4418, 7321, 11045, 14642, 22090, 36605, 73210, 344087, 688174, 1720435, 3440870, 16172089, 32344178, 80860445, 161720890]

約数ペア:

[(1, 161720890), (2, 80860445), (5, 32344178), (10, 16172089), (47, 3440870), (94, 1720435), (235, 688174), (470, 344087), (2209, 73210), (4418, 36605), (7321, 22090), (11045, 14642)]