40248920

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{271}}^1$

素因数の和:408

約数の個数: 64

約数和(自身を含む): 94003200

約数和(自身を除く): 53754280

約数列:

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

約数ペア:

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