199610980

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1\times {\mathrm{883}}^1$

素因数の和:1108

約数の個数: 48

約数和(自身を含む): 427714560

約数和(自身を除く): 228103580

約数列:

[1, 2, 4, 5, 10, 20, 89, 127, 178, 254, 356, 445, 508, 635, 883, 890, 1270, 1766, 1780, 2540, 3532, 4415, 8830, 11303, 17660, 22606, 45212, 56515, 78587, 112141, 113030, 157174, 224282, 226060, 314348, 392935, 448564, 560705, 785870, 1121410, 1571740, 2242820, 9980549, 19961098, 39922196, 49902745, 99805490, 199610980]

約数ペア:

[(1, 199610980), (2, 99805490), (4, 49902745), (5, 39922196), (10, 19961098), (20, 9980549), (89, 2242820), (127, 1571740), (178, 1121410), (254, 785870), (356, 560705), (445, 448564), (508, 392935), (635, 314348), (883, 226060), (890, 224282), (1270, 157174), (1766, 113030), (1780, 112141), (2540, 78587), (3532, 56515), (4415, 45212), (8830, 22606), (11303, 17660)]