39917440

素因数分解:

$2^7\times 5^1\times {\mathrm{97}}^1\times {\mathrm{643}}^1$

素因数の和:759

約数の個数: 64

約数和(自身を含む): 96561360

約数和(自身を除く): 56643920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 97, 128, 160, 194, 320, 388, 485, 640, 643, 776, 970, 1286, 1552, 1940, 2572, 3104, 3215, 3880, 5144, 6208, 6430, 7760, 10288, 12416, 12860, 15520, 20576, 25720, 31040, 41152, 51440, 62080, 62371, 82304, 102880, 124742, 205760, 249484, 311855, 411520, 498968, 623710, 997936, 1247420, 1995872, 2494840, 3991744, 4989680, 7983488, 9979360, 19958720, 39917440]

約数ペア:

[(1, 39917440), (2, 19958720), (4, 9979360), (5, 7983488), (8, 4989680), (10, 3991744), (16, 2494840), (20, 1995872), (32, 1247420), (40, 997936), (64, 623710), (80, 498968), (97, 411520), (128, 311855), (160, 249484), (194, 205760), (320, 124742), (388, 102880), (485, 82304), (640, 62371), (643, 62080), (776, 51440), (970, 41152), (1286, 31040), (1552, 25720), (1940, 20576), (2572, 15520), (3104, 12860), (3215, 12416), (3880, 10288), (5144, 7760), (6208, 6430)]