211220

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{179}}^1$

素因数の和:247

約数の個数: 24

約数和(自身を含む): 453600

約数和(自身を除く): 242380

約数列:

[1, 2, 4, 5, 10, 20, 59, 118, 179, 236, 295, 358, 590, 716, 895, 1180, 1790, 3580, 10561, 21122, 42244, 52805, 105610, 211220]

約数ペア:

[(1, 211220), (2, 105610), (4, 52805), (5, 42244), (10, 21122), (20, 10561), (59, 3580), (118, 1790), (179, 1180), (236, 895), (295, 716), (358, 590)]