40669280

素因数分解:

$2^5\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1619}}^1$

素因数の和:1791

約数の個数: 48

約数和(自身を含む): 96752880

約数和(自身を除く): 56083600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 157, 160, 314, 628, 785, 1256, 1570, 1619, 2512, 3140, 3238, 5024, 6280, 6476, 8095, 12560, 12952, 16190, 25120, 25904, 32380, 51808, 64760, 129520, 254183, 259040, 508366, 1016732, 1270915, 2033464, 2541830, 4066928, 5083660, 8133856, 10167320, 20334640, 40669280]

約数ペア:

[(1, 40669280), (2, 20334640), (4, 10167320), (5, 8133856), (8, 5083660), (10, 4066928), (16, 2541830), (20, 2033464), (32, 1270915), (40, 1016732), (80, 508366), (157, 259040), (160, 254183), (314, 129520), (628, 64760), (785, 51808), (1256, 32380), (1570, 25904), (1619, 25120), (2512, 16190), (3140, 12952), (3238, 12560), (5024, 8095), (6280, 6476)]