18998420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{1399}}^1$

素因数の和:1512

約数の個数: 48

約数和(自身を含む): 46099200

約数和(自身を除く): 27100780

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 97, 140, 194, 388, 485, 679, 970, 1358, 1399, 1940, 2716, 2798, 3395, 5596, 6790, 6995, 9793, 13580, 13990, 19586, 27980, 39172, 48965, 97930, 135703, 195860, 271406, 542812, 678515, 949921, 1357030, 1899842, 2714060, 3799684, 4749605, 9499210, 18998420]

約数ペア:

[(1, 18998420), (2, 9499210), (4, 4749605), (5, 3799684), (7, 2714060), (10, 1899842), (14, 1357030), (20, 949921), (28, 678515), (35, 542812), (70, 271406), (97, 195860), (140, 135703), (194, 97930), (388, 48965), (485, 39172), (679, 27980), (970, 19586), (1358, 13990), (1399, 13580), (1940, 9793), (2716, 6995), (2798, 6790), (3395, 5596)]