79968520

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{563}}^1$

素因数の和:694

約数の個数: 64

約数和(自身を含む): 186390720

約数和(自身を除く): 106422200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 67, 106, 134, 212, 265, 268, 335, 424, 530, 536, 563, 670, 1060, 1126, 1340, 2120, 2252, 2680, 2815, 3551, 4504, 5630, 7102, 11260, 14204, 17755, 22520, 28408, 29839, 35510, 37721, 59678, 71020, 75442, 119356, 142040, 149195, 150884, 188605, 238712, 298390, 301768, 377210, 596780, 754420, 1193560, 1508840, 1999213, 3998426, 7996852, 9996065, 15993704, 19992130, 39984260, 79968520]

約数ペア:

[(1, 79968520), (2, 39984260), (4, 19992130), (5, 15993704), (8, 9996065), (10, 7996852), (20, 3998426), (40, 1999213), (53, 1508840), (67, 1193560), (106, 754420), (134, 596780), (212, 377210), (265, 301768), (268, 298390), (335, 238712), (424, 188605), (530, 150884), (536, 149195), (563, 142040), (670, 119356), (1060, 75442), (1126, 71020), (1340, 59678), (2120, 37721), (2252, 35510), (2680, 29839), (2815, 28408), (3551, 22520), (4504, 17755), (5630, 14204), (7102, 11260)]