87937340

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1\times {\mathrm{389}}^1$

素因数の和:614

約数の個数: 48

約数和(自身を含む): 188697600

約数和(自身を除く): 100760260

約数列:

[1, 2, 4, 5, 10, 20, 89, 127, 178, 254, 356, 389, 445, 508, 635, 778, 890, 1270, 1556, 1780, 1945, 2540, 3890, 7780, 11303, 22606, 34621, 45212, 49403, 56515, 69242, 98806, 113030, 138484, 173105, 197612, 226060, 247015, 346210, 494030, 692420, 988060, 4396867, 8793734, 17587468, 21984335, 43968670, 87937340]

約数ペア:

[(1, 87937340), (2, 43968670), (4, 21984335), (5, 17587468), (10, 8793734), (20, 4396867), (89, 988060), (127, 692420), (178, 494030), (254, 346210), (356, 247015), (389, 226060), (445, 197612), (508, 173105), (635, 138484), (778, 113030), (890, 98806), (1270, 69242), (1556, 56515), (1780, 49403), (1945, 45212), (2540, 34621), (3890, 22606), (7780, 11303)]