8418340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{383}}^1$

素因数の和:556

約数の個数: 48

約数和(自身を含む): 20385792

約数和(自身を除く): 11967452

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 157, 314, 383, 628, 766, 785, 1099, 1532, 1570, 1915, 2198, 2681, 3140, 3830, 4396, 5362, 5495, 7660, 10724, 10990, 13405, 21980, 26810, 53620, 60131, 120262, 240524, 300655, 420917, 601310, 841834, 1202620, 1683668, 2104585, 4209170, 8418340]

約数ペア:

[(1, 8418340), (2, 4209170), (4, 2104585), (5, 1683668), (7, 1202620), (10, 841834), (14, 601310), (20, 420917), (28, 300655), (35, 240524), (70, 120262), (140, 60131), (157, 53620), (314, 26810), (383, 21980), (628, 13405), (766, 10990), (785, 10724), (1099, 7660), (1532, 5495), (1570, 5362), (1915, 4396), (2198, 3830), (2681, 3140)]