2149309720

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{475511}}^1$

素因数の和:475635

約数の個数: 32

約数和(自身を含む): 4878753120

約数和(自身を除く): 2729443400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 2260, 4520, 475511, 951022, 1902044, 2377555, 3804088, 4755110, 9510220, 19020440, 53732743, 107465486, 214930972, 268663715, 429861944, 537327430, 1074654860, 2149309720]

約数ペア:

[(1, 2149309720), (2, 1074654860), (4, 537327430), (5, 429861944), (8, 268663715), (10, 214930972), (20, 107465486), (40, 53732743), (113, 19020440), (226, 9510220), (452, 4755110), (565, 3804088), (904, 2377555), (1130, 1902044), (2260, 951022), (4520, 475511)]