18189440

素因数分解:

$2^7\times 5^1\times {\mathrm{97}}^1\times {\mathrm{293}}^1$

素因数の和:409

約数の個数: 64

約数和(自身を含む): 44082360

約数和(自身を除く): 25892920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 97, 128, 160, 194, 293, 320, 388, 485, 586, 640, 776, 970, 1172, 1465, 1552, 1940, 2344, 2930, 3104, 3880, 4688, 5860, 6208, 7760, 9376, 11720, 12416, 15520, 18752, 23440, 28421, 31040, 37504, 46880, 56842, 62080, 93760, 113684, 142105, 187520, 227368, 284210, 454736, 568420, 909472, 1136840, 1818944, 2273680, 3637888, 4547360, 9094720, 18189440]

約数ペア:

[(1, 18189440), (2, 9094720), (4, 4547360), (5, 3637888), (8, 2273680), (10, 1818944), (16, 1136840), (20, 909472), (32, 568420), (40, 454736), (64, 284210), (80, 227368), (97, 187520), (128, 142105), (160, 113684), (194, 93760), (293, 62080), (320, 56842), (388, 46880), (485, 37504), (586, 31040), (640, 28421), (776, 23440), (970, 18752), (1172, 15520), (1465, 12416), (1552, 11720), (1940, 9376), (2344, 7760), (2930, 6208), (3104, 5860), (3880, 4688)]