87402800

素因数分解:

$2^4\times 5^2\times {\mathrm{353}}^1\times {\mathrm{619}}^1$

素因数の和:990

約数の個数: 60

約数和(自身を含む): 210920280

約数和(自身を除く): 123517480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 353, 400, 619, 706, 1238, 1412, 1765, 2476, 2824, 3095, 3530, 4952, 5648, 6190, 7060, 8825, 9904, 12380, 14120, 15475, 17650, 24760, 28240, 30950, 35300, 49520, 61900, 70600, 123800, 141200, 218507, 247600, 437014, 874028, 1092535, 1748056, 2185070, 3496112, 4370140, 5462675, 8740280, 10925350, 17480560, 21850700, 43701400, 87402800]

約数ペア:

[(1, 87402800), (2, 43701400), (4, 21850700), (5, 17480560), (8, 10925350), (10, 8740280), (16, 5462675), (20, 4370140), (25, 3496112), (40, 2185070), (50, 1748056), (80, 1092535), (100, 874028), (200, 437014), (353, 247600), (400, 218507), (619, 141200), (706, 123800), (1238, 70600), (1412, 61900), (1765, 49520), (2476, 35300), (2824, 30950), (3095, 28240), (3530, 24760), (4952, 17650), (5648, 15475), (6190, 14120), (7060, 12380), (8825, 9904)]