640072920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{193}}^1\times {\mathrm{953}}^1$

素因数の和:1189

約数の個数: 128

約数和(自身を含む): 1998820800

約数和(自身を除く): 1358747880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 29, 30, 40, 58, 60, 87, 116, 120, 145, 174, 193, 232, 290, 348, 386, 435, 579, 580, 696, 772, 870, 953, 965, 1158, 1160, 1544, 1740, 1906, 1930, 2316, 2859, 2895, 3480, 3812, 3860, 4632, 4765, 5597, 5718, 5790, 7624, 7720, 9530, 11194, 11436, 11580, 14295, 16791, 19060, 22388, 22872, 23160, 27637, 27985, 28590, 33582, 38120, 44776, 55274, 55970, 57180, 67164, 82911, 83955, 110548, 111940, 114360, 134328, 138185, 165822, 167910, 183929, 221096, 223880, 276370, 331644, 335820, 367858, 414555, 551787, 552740, 663288, 671640, 735716, 829110, 919645, 1103574, 1105480, 1471432, 1658220, 1839290, 2207148, 2758935, 3316440, 3678580, 4414296, 5333941, 5517870, 7357160, 10667882, 11035740, 16001823, 21335764, 22071480, 26669705, 32003646, 42671528, 53339410, 64007292, 80009115, 106678820, 128014584, 160018230, 213357640, 320036460, 640072920]

約数ペア:

[(1, 640072920), (2, 320036460), (3, 213357640), (4, 160018230), (5, 128014584), (6, 106678820), (8, 80009115), (10, 64007292), (12, 53339410), (15, 42671528), (20, 32003646), (24, 26669705), (29, 22071480), (30, 21335764), (40, 16001823), (58, 11035740), (60, 10667882), (87, 7357160), (116, 5517870), (120, 5333941), (145, 4414296), (174, 3678580), (193, 3316440), (232, 2758935), (290, 2207148), (348, 1839290), (386, 1658220), (435, 1471432), (579, 1105480), (580, 1103574), (696, 919645), (772, 829110), (870, 735716), (953, 671640), (965, 663288), (1158, 552740), (1160, 551787), (1544, 414555), (1740, 367858), (1906, 335820), (1930, 331644), (2316, 276370), (2859, 223880), (2895, 221096), (3480, 183929), (3812, 167910), (3860, 165822), (4632, 138185), (4765, 134328), (5597, 114360), (5718, 111940), (5790, 110548), (7624, 83955), (7720, 82911), (9530, 67164), (11194, 57180), (11436, 55970), (11580, 55274), (14295, 44776), (16791, 38120), (19060, 33582), (22388, 28590), (22872, 27985), (23160, 27637)]