890164.0000000

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{491}}^1$

素因数の和:552

約数の個数: 64

約数和(自身を含む): 15586560

約数和(自身を除く): 9674920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 56, 70, 86, 140, 172, 215, 280, 301, 344, 430, 491, 602, 860, 982, 1204, 1505, 1720, 1964, 2408, 2455, 3010, 3437, 3928, 4910, 6020, 6874, 9820, 12040, 13748, 17185, 19640, 21113, 27496, 34370, 42226, 68740, 84452, 105565, 137480, 147791, 168904, 211130, 295582, 422260, 591164, 738955, 844520, 1182328, 1477910, 2955820, 5911640]

約数ペア:

[(1, 5911640), (2, 2955820), (4, 1477910), (5, 1182328), (7, 844520), (8, 738955), (10, 591164), (14, 422260), (20, 295582), (28, 211130), (35, 168904), (40, 147791), (43, 137480), (56, 105565), (70, 84452), (86, 68740), (140, 42226), (172, 34370), (215, 27496), (280, 21113), (301, 19640), (344, 17185), (430, 13748), (491, 12040), (602, 9820), (860, 6874), (982, 6020), (1204, 4910), (1505, 3928), (1720, 3437), (1964, 3010), (2408, 2455)]