28509880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{233}}^1$

素因数の和:293

約数の個数: 128

約数和(自身を含む): 80870400

約数和(自身を除く): 52360520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 23, 28, 35, 38, 40, 46, 56, 70, 76, 92, 95, 115, 133, 140, 152, 161, 184, 190, 230, 233, 266, 280, 322, 380, 437, 460, 466, 532, 644, 665, 760, 805, 874, 920, 932, 1064, 1165, 1288, 1330, 1610, 1631, 1748, 1864, 2185, 2330, 2660, 3059, 3220, 3262, 3496, 4370, 4427, 4660, 5320, 5359, 6118, 6440, 6524, 8155, 8740, 8854, 9320, 10718, 12236, 13048, 15295, 16310, 17480, 17708, 21436, 22135, 24472, 26795, 30590, 30989, 32620, 35416, 37513, 42872, 44270, 53590, 61180, 61978, 65240, 75026, 88540, 101821, 107180, 122360, 123956, 150052, 154945, 177080, 187565, 203642, 214360, 247912, 300104, 309890, 375130, 407284, 509105, 619780, 712747, 750260, 814568, 1018210, 1239560, 1425494, 1500520, 2036420, 2850988, 3563735, 4072840, 5701976, 7127470, 14254940, 28509880]

約数ペア:

[(1, 28509880), (2, 14254940), (4, 7127470), (5, 5701976), (7, 4072840), (8, 3563735), (10, 2850988), (14, 2036420), (19, 1500520), (20, 1425494), (23, 1239560), (28, 1018210), (35, 814568), (38, 750260), (40, 712747), (46, 619780), (56, 509105), (70, 407284), (76, 375130), (92, 309890), (95, 300104), (115, 247912), (133, 214360), (140, 203642), (152, 187565), (161, 177080), (184, 154945), (190, 150052), (230, 123956), (233, 122360), (266, 107180), (280, 101821), (322, 88540), (380, 75026), (437, 65240), (460, 61978), (466, 61180), (532, 53590), (644, 44270), (665, 42872), (760, 37513), (805, 35416), (874, 32620), (920, 30989), (932, 30590), (1064, 26795), (1165, 24472), (1288, 22135), (1330, 21436), (1610, 17708), (1631, 17480), (1748, 16310), (1864, 15295), (2185, 13048), (2330, 12236), (2660, 10718), (3059, 9320), (3220, 8854), (3262, 8740), (3496, 8155), (4370, 6524), (4427, 6440), (4660, 6118), (5320, 5359)]