219395890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{72889}}^1$

素因数の和:72946

約数の個数: 32

約数和(自身を含む): 461831040

約数和(自身を除く): 242435150

約数列:

[1, 2, 5, 7, 10, 14, 35, 43, 70, 86, 215, 301, 430, 602, 1505, 3010, 72889, 145778, 364445, 510223, 728890, 1020446, 2551115, 3134227, 5102230, 6268454, 15671135, 21939589, 31342270, 43879178, 109697945, 219395890]

約数ペア:

[(1, 219395890), (2, 109697945), (5, 43879178), (7, 31342270), (10, 21939589), (14, 15671135), (35, 6268454), (43, 5102230), (70, 3134227), (86, 2551115), (215, 1020446), (301, 728890), (430, 510223), (602, 364445), (1505, 145778), (3010, 72889)]