68543560

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:398

約数の個数: 64

約数和(自身を含む): 158400000

約数和(自身を除く): 89856440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 109, 158, 199, 218, 316, 395, 398, 436, 545, 632, 790, 796, 872, 995, 1090, 1580, 1592, 1990, 2180, 3160, 3980, 4360, 7960, 8611, 15721, 17222, 21691, 31442, 34444, 43055, 43382, 62884, 68888, 78605, 86110, 86764, 108455, 125768, 157210, 172220, 173528, 216910, 314420, 344440, 433820, 628840, 867640, 1713589, 3427178, 6854356, 8567945, 13708712, 17135890, 34271780, 68543560]

約数ペア:

[(1, 68543560), (2, 34271780), (4, 17135890), (5, 13708712), (8, 8567945), (10, 6854356), (20, 3427178), (40, 1713589), (79, 867640), (109, 628840), (158, 433820), (199, 344440), (218, 314420), (316, 216910), (395, 173528), (398, 172220), (436, 157210), (545, 125768), (632, 108455), (790, 86764), (796, 86110), (872, 78605), (995, 68888), (1090, 62884), (1580, 43382), (1592, 43055), (1990, 34444), (2180, 31442), (3160, 21691), (3980, 17222), (4360, 15721), (7960, 8611)]