19384480

素因数分解:

$2^5\times 5^1\times {\mathrm{97}}^1\times {\mathrm{1249}}^1$

素因数の和:1361

約数の個数: 48

約数和(自身を含む): 46305000

約数和(自身を除く): 26920520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 97, 160, 194, 388, 485, 776, 970, 1249, 1552, 1940, 2498, 3104, 3880, 4996, 6245, 7760, 9992, 12490, 15520, 19984, 24980, 39968, 49960, 99920, 121153, 199840, 242306, 484612, 605765, 969224, 1211530, 1938448, 2423060, 3876896, 4846120, 9692240, 19384480]

約数ペア:

[(1, 19384480), (2, 9692240), (4, 4846120), (5, 3876896), (8, 2423060), (10, 1938448), (16, 1211530), (20, 969224), (32, 605765), (40, 484612), (80, 242306), (97, 199840), (160, 121153), (194, 99920), (388, 49960), (485, 39968), (776, 24980), (970, 19984), (1249, 15520), (1552, 12490), (1940, 9992), (2498, 7760), (3104, 6245), (3880, 4996)]