19015952720

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{3347879}}^1$

素因数の和:3347963

約数の個数: 40

約数和(自身を含む): 44834808960

約数和(自身を除く): 25818856240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 3347879, 6695758, 13391516, 16739395, 26783032, 33478790, 53566064, 66957580, 133915160, 237699409, 267830320, 475398818, 950797636, 1188497045, 1901595272, 2376994090, 3803190544, 4753988180, 9507976360, 19015952720]

約数ペア:

[(1, 19015952720), (2, 9507976360), (4, 4753988180), (5, 3803190544), (8, 2376994090), (10, 1901595272), (16, 1188497045), (20, 950797636), (40, 475398818), (71, 267830320), (80, 237699409), (142, 133915160), (284, 66957580), (355, 53566064), (568, 33478790), (710, 26783032), (1136, 16739395), (1420, 13391516), (2840, 6695758), (5680, 3347879)]