19541620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{1439}}^1$

素因数の和:1552

約数の個数: 48

約数和(自身を含む): 47416320

約数和(自身を除く): 27874700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 97, 140, 194, 388, 485, 679, 970, 1358, 1439, 1940, 2716, 2878, 3395, 5756, 6790, 7195, 10073, 13580, 14390, 20146, 28780, 40292, 50365, 100730, 139583, 201460, 279166, 558332, 697915, 977081, 1395830, 1954162, 2791660, 3908324, 4885405, 9770810, 19541620]

約数ペア:

[(1, 19541620), (2, 9770810), (4, 4885405), (5, 3908324), (7, 2791660), (10, 1954162), (14, 1395830), (20, 977081), (28, 697915), (35, 558332), (70, 279166), (97, 201460), (140, 139583), (194, 100730), (388, 50365), (485, 40292), (679, 28780), (970, 20146), (1358, 14390), (1439, 13580), (1940, 10073), (2716, 7195), (2878, 6790), (3395, 5756)]