64278760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17659}}^1$

素因数の和:17690

約数の個数: 64

約数和(自身を含む): 178012800

約数和(自身を除く): 113734040

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 17659, 35318, 70636, 88295, 123613, 141272, 176590, 229567, 247226, 353180, 459134, 494452, 618065, 706360, 918268, 988904, 1147835, 1236130, 1606969, 1836536, 2295670, 2472260, 3213938, 4591340, 4944520, 6427876, 8034845, 9182680, 12855752, 16069690, 32139380, 64278760]

約数ペア:

[(1, 64278760), (2, 32139380), (4, 16069690), (5, 12855752), (7, 9182680), (8, 8034845), (10, 6427876), (13, 4944520), (14, 4591340), (20, 3213938), (26, 2472260), (28, 2295670), (35, 1836536), (40, 1606969), (52, 1236130), (56, 1147835), (65, 988904), (70, 918268), (91, 706360), (104, 618065), (130, 494452), (140, 459134), (182, 353180), (260, 247226), (280, 229567), (364, 176590), (455, 141272), (520, 123613), (728, 88295), (910, 70636), (1820, 35318), (3640, 17659)]