257947760

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{2861}}^1$

素因数の和:2911

約数の個数: 120

約数和(自身を含む): 728230176

約数和(自身を除く): 470282416

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 49, 56, 70, 80, 92, 98, 112, 115, 140, 161, 184, 196, 230, 245, 280, 322, 368, 392, 460, 490, 560, 644, 784, 805, 920, 980, 1127, 1288, 1610, 1840, 1960, 2254, 2576, 2861, 3220, 3920, 4508, 5635, 5722, 6440, 9016, 11270, 11444, 12880, 14305, 18032, 20027, 22540, 22888, 28610, 40054, 45080, 45776, 57220, 65803, 80108, 90160, 100135, 114440, 131606, 140189, 160216, 200270, 228880, 263212, 280378, 320432, 329015, 400540, 460621, 526424, 560756, 658030, 700945, 801080, 921242, 1052848, 1121512, 1316060, 1401890, 1602160, 1842484, 2243024, 2303105, 2632120, 2803780, 3224347, 3684968, 4606210, 5264240, 5607560, 6448694, 7369936, 9212420, 11215120, 12897388, 16121735, 18424840, 25794776, 32243470, 36849680, 51589552, 64486940, 128973880, 257947760]

約数ペア:

[(1, 257947760), (2, 128973880), (4, 64486940), (5, 51589552), (7, 36849680), (8, 32243470), (10, 25794776), (14, 18424840), (16, 16121735), (20, 12897388), (23, 11215120), (28, 9212420), (35, 7369936), (40, 6448694), (46, 5607560), (49, 5264240), (56, 4606210), (70, 3684968), (80, 3224347), (92, 2803780), (98, 2632120), (112, 2303105), (115, 2243024), (140, 1842484), (161, 1602160), (184, 1401890), (196, 1316060), (230, 1121512), (245, 1052848), (280, 921242), (322, 801080), (368, 700945), (392, 658030), (460, 560756), (490, 526424), (560, 460621), (644, 400540), (784, 329015), (805, 320432), (920, 280378), (980, 263212), (1127, 228880), (1288, 200270), (1610, 160216), (1840, 140189), (1960, 131606), (2254, 114440), (2576, 100135), (2861, 90160), (3220, 80108), (3920, 65803), (4508, 57220), (5635, 45776), (5722, 45080), (6440, 40054), (9016, 28610), (11270, 22888), (11444, 22540), (12880, 20027), (14305, 18032)]