68977840

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{757}}^1$

素因数の和:854

約数の個数: 80

約数和(自身を含む): 172569312

約数和(自身を除く): 103591472

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 67, 68, 80, 85, 134, 136, 170, 268, 272, 335, 340, 536, 670, 680, 757, 1072, 1139, 1340, 1360, 1514, 2278, 2680, 3028, 3785, 4556, 5360, 5695, 6056, 7570, 9112, 11390, 12112, 12869, 15140, 18224, 22780, 25738, 30280, 45560, 50719, 51476, 60560, 64345, 91120, 101438, 102952, 128690, 202876, 205904, 253595, 257380, 405752, 507190, 514760, 811504, 862223, 1014380, 1029520, 1724446, 2028760, 3448892, 4057520, 4311115, 6897784, 8622230, 13795568, 17244460, 34488920, 68977840]

約数ペア:

[(1, 68977840), (2, 34488920), (4, 17244460), (5, 13795568), (8, 8622230), (10, 6897784), (16, 4311115), (17, 4057520), (20, 3448892), (34, 2028760), (40, 1724446), (67, 1029520), (68, 1014380), (80, 862223), (85, 811504), (134, 514760), (136, 507190), (170, 405752), (268, 257380), (272, 253595), (335, 205904), (340, 202876), (536, 128690), (670, 102952), (680, 101438), (757, 91120), (1072, 64345), (1139, 60560), (1340, 51476), (1360, 50719), (1514, 45560), (2278, 30280), (2680, 25738), (3028, 22780), (3785, 18224), (4556, 15140), (5360, 12869), (5695, 12112), (6056, 11390), (7570, 9112)]