80497840

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{271}}^1$

素因数の和:410

約数の個数: 80

約数和(自身を含む): 194273280

約数和(自身を除く): 113775440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 79, 80, 94, 158, 188, 235, 271, 316, 376, 395, 470, 542, 632, 752, 790, 940, 1084, 1264, 1355, 1580, 1880, 2168, 2710, 3160, 3713, 3760, 4336, 5420, 6320, 7426, 10840, 12737, 14852, 18565, 21409, 21680, 25474, 29704, 37130, 42818, 50948, 59408, 63685, 74260, 85636, 101896, 107045, 127370, 148520, 171272, 203792, 214090, 254740, 297040, 342544, 428180, 509480, 856360, 1006223, 1018960, 1712720, 2012446, 4024892, 5031115, 8049784, 10062230, 16099568, 20124460, 40248920, 80497840]

約数ペア:

[(1, 80497840), (2, 40248920), (4, 20124460), (5, 16099568), (8, 10062230), (10, 8049784), (16, 5031115), (20, 4024892), (40, 2012446), (47, 1712720), (79, 1018960), (80, 1006223), (94, 856360), (158, 509480), (188, 428180), (235, 342544), (271, 297040), (316, 254740), (376, 214090), (395, 203792), (470, 171272), (542, 148520), (632, 127370), (752, 107045), (790, 101896), (940, 85636), (1084, 74260), (1264, 63685), (1355, 59408), (1580, 50948), (1880, 42818), (2168, 37130), (2710, 29704), (3160, 25474), (3713, 21680), (3760, 21409), (4336, 18565), (5420, 14852), (6320, 12737), (7426, 10840)]