19485040

素因数分解:

$2^4\times 5^1\times {\mathrm{151}}^1\times {\mathrm{1613}}^1$

素因数の和:1777

約数の個数: 40

約数和(自身を含む): 45631008

約数和(自身を除く): 26145968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 151, 302, 604, 755, 1208, 1510, 1613, 2416, 3020, 3226, 6040, 6452, 8065, 12080, 12904, 16130, 25808, 32260, 64520, 129040, 243563, 487126, 974252, 1217815, 1948504, 2435630, 3897008, 4871260, 9742520, 19485040]

約数ペア:

[(1, 19485040), (2, 9742520), (4, 4871260), (5, 3897008), (8, 2435630), (10, 1948504), (16, 1217815), (20, 974252), (40, 487126), (80, 243563), (151, 129040), (302, 64520), (604, 32260), (755, 25808), (1208, 16130), (1510, 12904), (1613, 12080), (2416, 8065), (3020, 6452), (3226, 6040)]