2140640

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{787}}^1$

素因数の和:819

約数の個数: 48

約数和(自身を含む): 5361552

約数和(自身を除く): 3220912

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 340, 544, 680, 787, 1360, 1574, 2720, 3148, 3935, 6296, 7870, 12592, 13379, 15740, 25184, 26758, 31480, 53516, 62960, 66895, 107032, 125920, 133790, 214064, 267580, 428128, 535160, 1070320, 2140640]

約数ペア:

[(1, 2140640), (2, 1070320), (4, 535160), (5, 428128), (8, 267580), (10, 214064), (16, 133790), (17, 125920), (20, 107032), (32, 66895), (34, 62960), (40, 53516), (68, 31480), (80, 26758), (85, 25184), (136, 15740), (160, 13379), (170, 12592), (272, 7870), (340, 6296), (544, 3935), (680, 3148), (787, 2720), (1360, 1574)]