31388780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{379}}^1$

素因数の和:530

約数の個数: 48

約数和(自身を含む): 68372640

約数和(自身を除く): 36983860

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 101, 164, 202, 205, 379, 404, 410, 505, 758, 820, 1010, 1516, 1895, 2020, 3790, 4141, 7580, 8282, 15539, 16564, 20705, 31078, 38279, 41410, 62156, 76558, 77695, 82820, 153116, 155390, 191395, 310780, 382790, 765580, 1569439, 3138878, 6277756, 7847195, 15694390, 31388780]

約数ペア:

[(1, 31388780), (2, 15694390), (4, 7847195), (5, 6277756), (10, 3138878), (20, 1569439), (41, 765580), (82, 382790), (101, 310780), (164, 191395), (202, 155390), (205, 153116), (379, 82820), (404, 77695), (410, 76558), (505, 62156), (758, 41410), (820, 38279), (1010, 31078), (1516, 20705), (1895, 16564), (2020, 15539), (3790, 8282), (4141, 7580)]