19679360

素因数分解:

$2^7\times 5^1\times {\mathrm{97}}^1\times {\mathrm{317}}^1$

素因数の和:433

約数の個数: 64

約数和(自身を含む): 47680920

約数和(自身を除く): 28001560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 97, 128, 160, 194, 317, 320, 388, 485, 634, 640, 776, 970, 1268, 1552, 1585, 1940, 2536, 3104, 3170, 3880, 5072, 6208, 6340, 7760, 10144, 12416, 12680, 15520, 20288, 25360, 30749, 31040, 40576, 50720, 61498, 62080, 101440, 122996, 153745, 202880, 245992, 307490, 491984, 614980, 983968, 1229960, 1967936, 2459920, 3935872, 4919840, 9839680, 19679360]

約数ペア:

[(1, 19679360), (2, 9839680), (4, 4919840), (5, 3935872), (8, 2459920), (10, 1967936), (16, 1229960), (20, 983968), (32, 614980), (40, 491984), (64, 307490), (80, 245992), (97, 202880), (128, 153745), (160, 122996), (194, 101440), (317, 62080), (320, 61498), (388, 50720), (485, 40576), (634, 31040), (640, 30749), (776, 25360), (970, 20288), (1268, 15520), (1552, 12680), (1585, 12416), (1940, 10144), (2536, 7760), (3104, 6340), (3170, 6208), (3880, 5072)]