2687702960

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{781309}}^1$

素因数の和:781365

約数の個数: 40

約数和(自身を含む): 6394241040

約数和(自身を除く): 3706538080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 781309, 1562618, 3125236, 3906545, 6250472, 7813090, 12500944, 15626180, 31252360, 33596287, 62504720, 67192574, 134385148, 167981435, 268770296, 335962870, 537540592, 671925740, 1343851480, 2687702960]

約数ペア:

[(1, 2687702960), (2, 1343851480), (4, 671925740), (5, 537540592), (8, 335962870), (10, 268770296), (16, 167981435), (20, 134385148), (40, 67192574), (43, 62504720), (80, 33596287), (86, 31252360), (172, 15626180), (215, 12500944), (344, 7813090), (430, 6250472), (688, 3906545), (860, 3125236), (1720, 1562618), (3440, 781309)]