123920980

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1\times {\mathrm{733}}^1$

素因数の和:928

約数の個数: 48

約数和(自身を含む): 266353920

約数和(自身を除く): 142432940

約数列:

[1, 2, 4, 5, 10, 20, 79, 107, 158, 214, 316, 395, 428, 535, 733, 790, 1070, 1466, 1580, 2140, 2932, 3665, 7330, 8453, 14660, 16906, 33812, 42265, 57907, 78431, 84530, 115814, 156862, 169060, 231628, 289535, 313724, 392155, 579070, 784310, 1158140, 1568620, 6196049, 12392098, 24784196, 30980245, 61960490, 123920980]

約数ペア:

[(1, 123920980), (2, 61960490), (4, 30980245), (5, 24784196), (10, 12392098), (20, 6196049), (79, 1568620), (107, 1158140), (158, 784310), (214, 579070), (316, 392155), (395, 313724), (428, 289535), (535, 231628), (733, 169060), (790, 156862), (1070, 115814), (1466, 84530), (1580, 78431), (2140, 57907), (2932, 42265), (3665, 33812), (7330, 16906), (8453, 14660)]