257963040

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{359}}^1\times {\mathrm{499}}^1$

素因数の和:879

約数の個数: 144

約数和(自身を含む): 884520000

約数和(自身を除く): 626556960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 359, 360, 480, 499, 718, 720, 998, 1077, 1436, 1440, 1497, 1795, 1996, 2154, 2495, 2872, 2994, 3231, 3590, 3992, 4308, 4491, 4990, 5385, 5744, 5988, 6462, 7180, 7485, 7984, 8616, 8982, 9980, 10770, 11488, 11976, 12924, 14360, 14970, 15968, 16155, 17232, 17964, 19960, 21540, 22455, 23952, 25848, 28720, 29940, 32310, 34464, 35928, 39920, 43080, 44910, 47904, 51696, 57440, 59880, 64620, 71856, 79840, 86160, 89820, 103392, 119760, 129240, 143712, 172320, 179141, 179640, 239520, 258480, 358282, 359280, 516960, 537423, 716564, 718560, 895705, 1074846, 1433128, 1612269, 1791410, 2149692, 2687115, 2866256, 3224538, 3582820, 4299384, 5374230, 5732512, 6449076, 7165640, 8061345, 8598768, 10748460, 12898152, 14331280, 16122690, 17197536, 21496920, 25796304, 28662560, 32245380, 42993840, 51592608, 64490760, 85987680, 128981520, 257963040]

約数ペア:

[(1, 257963040), (2, 128981520), (3, 85987680), (4, 64490760), (5, 51592608), (6, 42993840), (8, 32245380), (9, 28662560), (10, 25796304), (12, 21496920), (15, 17197536), (16, 16122690), (18, 14331280), (20, 12898152), (24, 10748460), (30, 8598768), (32, 8061345), (36, 7165640), (40, 6449076), (45, 5732512), (48, 5374230), (60, 4299384), (72, 3582820), (80, 3224538), (90, 2866256), (96, 2687115), (120, 2149692), (144, 1791410), (160, 1612269), (180, 1433128), (240, 1074846), (288, 895705), (359, 718560), (360, 716564), (480, 537423), (499, 516960), (718, 359280), (720, 358282), (998, 258480), (1077, 239520), (1436, 179640), (1440, 179141), (1497, 172320), (1795, 143712), (1996, 129240), (2154, 119760), (2495, 103392), (2872, 89820), (2994, 86160), (3231, 79840), (3590, 71856), (3992, 64620), (4308, 59880), (4491, 57440), (4990, 51696), (5385, 47904), (5744, 44910), (5988, 43080), (6462, 39920), (7180, 35928), (7485, 34464), (7984, 32310), (8616, 29940), (8982, 28720), (9980, 25848), (10770, 23952), (11488, 22455), (11976, 21540), (12924, 19960), (14360, 17964), (14970, 17232), (15968, 16155)]