133865720

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{661}}^1$

素因数の和:816

約数の個数: 64

約数和(自身を含む): 310292640

約数和(自身を除く): 176426920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 83, 122, 166, 244, 305, 332, 415, 488, 610, 661, 664, 830, 1220, 1322, 1660, 2440, 2644, 3305, 3320, 5063, 5288, 6610, 10126, 13220, 20252, 25315, 26440, 40321, 40504, 50630, 54863, 80642, 101260, 109726, 161284, 201605, 202520, 219452, 274315, 322568, 403210, 438904, 548630, 806420, 1097260, 1612840, 2194520, 3346643, 6693286, 13386572, 16733215, 26773144, 33466430, 66932860, 133865720]

約数ペア:

[(1, 133865720), (2, 66932860), (4, 33466430), (5, 26773144), (8, 16733215), (10, 13386572), (20, 6693286), (40, 3346643), (61, 2194520), (83, 1612840), (122, 1097260), (166, 806420), (244, 548630), (305, 438904), (332, 403210), (415, 322568), (488, 274315), (610, 219452), (661, 202520), (664, 201605), (830, 161284), (1220, 109726), (1322, 101260), (1660, 80642), (2440, 54863), (2644, 50630), (3305, 40504), (3320, 40321), (5063, 26440), (5288, 25315), (6610, 20252), (10126, 13220)]