128973880

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{2861}}^1$

素因数の和:2909

約数の個数: 96

約数和(自身を含む): 352369440

約数和(自身を除く): 223395560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 49, 56, 70, 92, 98, 115, 140, 161, 184, 196, 230, 245, 280, 322, 392, 460, 490, 644, 805, 920, 980, 1127, 1288, 1610, 1960, 2254, 2861, 3220, 4508, 5635, 5722, 6440, 9016, 11270, 11444, 14305, 20027, 22540, 22888, 28610, 40054, 45080, 57220, 65803, 80108, 100135, 114440, 131606, 140189, 160216, 200270, 263212, 280378, 329015, 400540, 460621, 526424, 560756, 658030, 700945, 801080, 921242, 1121512, 1316060, 1401890, 1842484, 2303105, 2632120, 2803780, 3224347, 3684968, 4606210, 5607560, 6448694, 9212420, 12897388, 16121735, 18424840, 25794776, 32243470, 64486940, 128973880]

約数ペア:

[(1, 128973880), (2, 64486940), (4, 32243470), (5, 25794776), (7, 18424840), (8, 16121735), (10, 12897388), (14, 9212420), (20, 6448694), (23, 5607560), (28, 4606210), (35, 3684968), (40, 3224347), (46, 2803780), (49, 2632120), (56, 2303105), (70, 1842484), (92, 1401890), (98, 1316060), (115, 1121512), (140, 921242), (161, 801080), (184, 700945), (196, 658030), (230, 560756), (245, 526424), (280, 460621), (322, 400540), (392, 329015), (460, 280378), (490, 263212), (644, 200270), (805, 160216), (920, 140189), (980, 131606), (1127, 114440), (1288, 100135), (1610, 80108), (1960, 65803), (2254, 57220), (2861, 45080), (3220, 40054), (4508, 28610), (5635, 22888), (5722, 22540), (6440, 20027), (9016, 14305), (11270, 11444)]