858387840

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{647}}^1\times {\mathrm{691}}^1$

素因数の和:1360

約数の個数: 128

約数和(自身を含む): 2744305920

約数和(自身を除く): 1885918080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 320, 384, 480, 640, 647, 691, 960, 1294, 1382, 1920, 1941, 2073, 2588, 2764, 3235, 3455, 3882, 4146, 5176, 5528, 6470, 6910, 7764, 8292, 9705, 10352, 10365, 11056, 12940, 13820, 15528, 16584, 19410, 20704, 20730, 22112, 25880, 27640, 31056, 33168, 38820, 41408, 41460, 44224, 51760, 55280, 62112, 66336, 77640, 82816, 82920, 88448, 103520, 110560, 124224, 132672, 155280, 165840, 207040, 221120, 248448, 265344, 310560, 331680, 414080, 442240, 447077, 621120, 663360, 894154, 1242240, 1326720, 1341231, 1788308, 2235385, 2682462, 3576616, 4470770, 5364924, 6706155, 7153232, 8941540, 10729848, 13412310, 14306464, 17883080, 21459696, 26824620, 28612928, 35766160, 42919392, 53649240, 57225856, 71532320, 85838784, 107298480, 143064640, 171677568, 214596960, 286129280, 429193920, 858387840]

約数ペア:

[(1, 858387840), (2, 429193920), (3, 286129280), (4, 214596960), (5, 171677568), (6, 143064640), (8, 107298480), (10, 85838784), (12, 71532320), (15, 57225856), (16, 53649240), (20, 42919392), (24, 35766160), (30, 28612928), (32, 26824620), (40, 21459696), (48, 17883080), (60, 14306464), (64, 13412310), (80, 10729848), (96, 8941540), (120, 7153232), (128, 6706155), (160, 5364924), (192, 4470770), (240, 3576616), (320, 2682462), (384, 2235385), (480, 1788308), (640, 1341231), (647, 1326720), (691, 1242240), (960, 894154), (1294, 663360), (1382, 621120), (1920, 447077), (1941, 442240), (2073, 414080), (2588, 331680), (2764, 310560), (3235, 265344), (3455, 248448), (3882, 221120), (4146, 207040), (5176, 165840), (5528, 155280), (6470, 132672), (6910, 124224), (7764, 110560), (8292, 103520), (9705, 88448), (10352, 82920), (10365, 82816), (11056, 77640), (12940, 66336), (13820, 62112), (15528, 55280), (16584, 51760), (19410, 44224), (20704, 41460), (20730, 41408), (22112, 38820), (25880, 33168), (27640, 31056)]