3980720

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2927}}^1$

素因数の和:2957

約数の個数: 40

約数和(自身を含む): 9802944

約数和(自身を除く): 5822224

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 2927, 5854, 11708, 14635, 23416, 29270, 46832, 49759, 58540, 99518, 117080, 199036, 234160, 248795, 398072, 497590, 796144, 995180, 1990360, 3980720]

約数ペア:

[(1, 3980720), (2, 1990360), (4, 995180), (5, 796144), (8, 497590), (10, 398072), (16, 248795), (17, 234160), (20, 199036), (34, 117080), (40, 99518), (68, 58540), (80, 49759), (85, 46832), (136, 29270), (170, 23416), (272, 14635), (340, 11708), (680, 5854), (1360, 2927)]