19513040

素因数分解:

$2^4\times 5^1\times {\mathrm{149}}^1\times {\mathrm{1637}}^1$

素因数の和:1799

約数の個数: 40

約数和(自身を含む): 45700200

約数和(自身を除く): 26187160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 149, 298, 596, 745, 1192, 1490, 1637, 2384, 2980, 3274, 5960, 6548, 8185, 11920, 13096, 16370, 26192, 32740, 65480, 130960, 243913, 487826, 975652, 1219565, 1951304, 2439130, 3902608, 4878260, 9756520, 19513040]

約数ペア:

[(1, 19513040), (2, 9756520), (4, 4878260), (5, 3902608), (8, 2439130), (10, 1951304), (16, 1219565), (20, 975652), (40, 487826), (80, 243913), (149, 130960), (298, 65480), (596, 32740), (745, 26192), (1192, 16370), (1490, 13096), (1637, 11920), (2384, 8185), (2980, 6548), (3274, 5960)]