70890880

素因数分解:

$2^7\times 5^1\times {\mathrm{257}}^1\times {\mathrm{431}}^1$

素因数の和:707

約数の個数: 64

約数和(自身を含む): 170527680

約数和(自身を除く): 99636800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 257, 320, 431, 514, 640, 862, 1028, 1285, 1724, 2056, 2155, 2570, 3448, 4112, 4310, 5140, 6896, 8224, 8620, 10280, 13792, 16448, 17240, 20560, 27584, 32896, 34480, 41120, 55168, 68960, 82240, 110767, 137920, 164480, 221534, 275840, 443068, 553835, 886136, 1107670, 1772272, 2215340, 3544544, 4430680, 7089088, 8861360, 14178176, 17722720, 35445440, 70890880]

約数ペア:

[(1, 70890880), (2, 35445440), (4, 17722720), (5, 14178176), (8, 8861360), (10, 7089088), (16, 4430680), (20, 3544544), (32, 2215340), (40, 1772272), (64, 1107670), (80, 886136), (128, 553835), (160, 443068), (257, 275840), (320, 221534), (431, 164480), (514, 137920), (640, 110767), (862, 82240), (1028, 68960), (1285, 55168), (1724, 41120), (2056, 34480), (2155, 32896), (2570, 27584), (3448, 20560), (4112, 17240), (4310, 16448), (5140, 13792), (6896, 10280), (8224, 8620)]