71478140

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{127}}^1\times {\mathrm{263}}^1$

素因数の和:506

約数の個数: 48

約数和(自身を含む): 153280512

約数和(自身を除く): 81802372

約数列:

[1, 2, 4, 5, 10, 20, 107, 127, 214, 254, 263, 428, 508, 526, 535, 635, 1052, 1070, 1270, 1315, 2140, 2540, 2630, 5260, 13589, 27178, 28141, 33401, 54356, 56282, 66802, 67945, 112564, 133604, 135890, 140705, 167005, 271780, 281410, 334010, 562820, 668020, 3573907, 7147814, 14295628, 17869535, 35739070, 71478140]

約数ペア:

[(1, 71478140), (2, 35739070), (4, 17869535), (5, 14295628), (10, 7147814), (20, 3573907), (107, 668020), (127, 562820), (214, 334010), (254, 281410), (263, 271780), (428, 167005), (508, 140705), (526, 135890), (535, 133604), (635, 112564), (1052, 67945), (1070, 66802), (1270, 56282), (1315, 54356), (2140, 33401), (2540, 28141), (2630, 27178), (5260, 13589)]