19075660

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{541}}^1$

素因数の和:634

約数の個数: 48

約数和(自身を含む): 42067872

約数和(自身を除く): 22992212

約数列:

[1, 2, 4, 5, 10, 20, 41, 43, 82, 86, 164, 172, 205, 215, 410, 430, 541, 820, 860, 1082, 1763, 2164, 2705, 3526, 5410, 7052, 8815, 10820, 17630, 22181, 23263, 35260, 44362, 46526, 88724, 93052, 110905, 116315, 221810, 232630, 443620, 465260, 953783, 1907566, 3815132, 4768915, 9537830, 19075660]

約数ペア:

[(1, 19075660), (2, 9537830), (4, 4768915), (5, 3815132), (10, 1907566), (20, 953783), (41, 465260), (43, 443620), (82, 232630), (86, 221810), (164, 116315), (172, 110905), (205, 93052), (215, 88724), (410, 46526), (430, 44362), (541, 35260), (820, 23263), (860, 22181), (1082, 17630), (1763, 10820), (2164, 8815), (2705, 7052), (3526, 5410)]