426228920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{193}}^1$

素因数の和:385

約数の個数: 128

約数和(自身を含む): 1079447040

約数和(自身を除く): 653218120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 137, 155, 193, 248, 260, 274, 310, 386, 403, 520, 548, 620, 685, 772, 806, 965, 1096, 1240, 1370, 1544, 1612, 1781, 1930, 2015, 2509, 2740, 3224, 3562, 3860, 4030, 4247, 5018, 5480, 5983, 7124, 7720, 8060, 8494, 8905, 10036, 11966, 12545, 14248, 16120, 16988, 17810, 20072, 21235, 23932, 25090, 26441, 29915, 33976, 35620, 42470, 47864, 50180, 52882, 55211, 59830, 71240, 77779, 84940, 100360, 105764, 110422, 119660, 132205, 155558, 169880, 211528, 220844, 239320, 264410, 276055, 311116, 343733, 388895, 441688, 528820, 552110, 622232, 687466, 777790, 819671, 1057640, 1104220, 1374932, 1555580, 1639342, 1718665, 2208440, 2749864, 3111160, 3278684, 3437330, 4098355, 6557368, 6874660, 8196710, 10655723, 13749320, 16393420, 21311446, 32786840, 42622892, 53278615, 85245784, 106557230, 213114460, 426228920]

約数ペア:

[(1, 426228920), (2, 213114460), (4, 106557230), (5, 85245784), (8, 53278615), (10, 42622892), (13, 32786840), (20, 21311446), (26, 16393420), (31, 13749320), (40, 10655723), (52, 8196710), (62, 6874660), (65, 6557368), (104, 4098355), (124, 3437330), (130, 3278684), (137, 3111160), (155, 2749864), (193, 2208440), (248, 1718665), (260, 1639342), (274, 1555580), (310, 1374932), (386, 1104220), (403, 1057640), (520, 819671), (548, 777790), (620, 687466), (685, 622232), (772, 552110), (806, 528820), (965, 441688), (1096, 388895), (1240, 343733), (1370, 311116), (1544, 276055), (1612, 264410), (1781, 239320), (1930, 220844), (2015, 211528), (2509, 169880), (2740, 155558), (3224, 132205), (3562, 119660), (3860, 110422), (4030, 105764), (4247, 100360), (5018, 84940), (5480, 77779), (5983, 71240), (7124, 59830), (7720, 55211), (8060, 52882), (8494, 50180), (8905, 47864), (10036, 42470), (11966, 35620), (12545, 33976), (14248, 29915), (16120, 26441), (16988, 25090), (17810, 23932), (20072, 21235)]