80670680

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{971}}^1$

素因数の和:1080

約数の個数: 64

約数和(自身を含む): 190356480

約数和(自身を除く): 109685800

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 67, 124, 134, 155, 248, 268, 310, 335, 536, 620, 670, 971, 1240, 1340, 1942, 2077, 2680, 3884, 4154, 4855, 7768, 8308, 9710, 10385, 16616, 19420, 20770, 30101, 38840, 41540, 60202, 65057, 83080, 120404, 130114, 150505, 240808, 260228, 301010, 325285, 520456, 602020, 650570, 1204040, 1301140, 2016767, 2602280, 4033534, 8067068, 10083835, 16134136, 20167670, 40335340, 80670680]

約数ペア:

[(1, 80670680), (2, 40335340), (4, 20167670), (5, 16134136), (8, 10083835), (10, 8067068), (20, 4033534), (31, 2602280), (40, 2016767), (62, 1301140), (67, 1204040), (124, 650570), (134, 602020), (155, 520456), (248, 325285), (268, 301010), (310, 260228), (335, 240808), (536, 150505), (620, 130114), (670, 120404), (971, 83080), (1240, 65057), (1340, 60202), (1942, 41540), (2077, 38840), (2680, 30101), (3884, 20770), (4154, 19420), (4855, 16616), (7768, 10385), (8308, 9710)]