17722720

素因数分解:

$2^5\times 5^1\times {\mathrm{257}}^1\times {\mathrm{431}}^1$

素因数の和:703

約数の個数: 48

約数和(自身を含む): 42130368

約数和(自身を除く): 24407648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 257, 431, 514, 862, 1028, 1285, 1724, 2056, 2155, 2570, 3448, 4112, 4310, 5140, 6896, 8224, 8620, 10280, 13792, 17240, 20560, 34480, 41120, 68960, 110767, 221534, 443068, 553835, 886136, 1107670, 1772272, 2215340, 3544544, 4430680, 8861360, 17722720]

約数ペア:

[(1, 17722720), (2, 8861360), (4, 4430680), (5, 3544544), (8, 2215340), (10, 1772272), (16, 1107670), (20, 886136), (32, 553835), (40, 443068), (80, 221534), (160, 110767), (257, 68960), (431, 41120), (514, 34480), (862, 20560), (1028, 17240), (1285, 13792), (1724, 10280), (2056, 8620), (2155, 8224), (2570, 6896), (3448, 5140), (4112, 4310)]