78856020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{307}}^1\times {\mathrm{1427}}^1$

素因数の和:1749

約数の個数: 72

約数和(自身を含む): 240143904

約数和(自身を除く): 161287884

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 307, 614, 921, 1228, 1427, 1535, 1842, 2763, 2854, 3070, 3684, 4281, 4605, 5526, 5708, 6140, 7135, 8562, 9210, 11052, 12843, 13815, 14270, 17124, 18420, 21405, 25686, 27630, 28540, 42810, 51372, 55260, 64215, 85620, 128430, 256860, 438089, 876178, 1314267, 1752356, 2190445, 2628534, 3942801, 4380890, 5257068, 6571335, 7885602, 8761780, 13142670, 15771204, 19714005, 26285340, 39428010, 78856020]

約数ペア:

[(1, 78856020), (2, 39428010), (3, 26285340), (4, 19714005), (5, 15771204), (6, 13142670), (9, 8761780), (10, 7885602), (12, 6571335), (15, 5257068), (18, 4380890), (20, 3942801), (30, 2628534), (36, 2190445), (45, 1752356), (60, 1314267), (90, 876178), (180, 438089), (307, 256860), (614, 128430), (921, 85620), (1228, 64215), (1427, 55260), (1535, 51372), (1842, 42810), (2763, 28540), (2854, 27630), (3070, 25686), (3684, 21405), (4281, 18420), (4605, 17124), (5526, 14270), (5708, 13815), (6140, 12843), (7135, 11052), (8562, 9210)]