19974420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{110969}}^1$

素因数の和:110984

約数の個数: 36

約数和(自身を含む): 60589620

約数和(自身を除く): 40615200

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 110969, 221938, 332907, 443876, 554845, 665814, 998721, 1109690, 1331628, 1664535, 1997442, 2219380, 3329070, 3994884, 4993605, 6658140, 9987210, 19974420]

約数ペア:

[(1, 19974420), (2, 9987210), (3, 6658140), (4, 4993605), (5, 3994884), (6, 3329070), (9, 2219380), (10, 1997442), (12, 1664535), (15, 1331628), (18, 1109690), (20, 998721), (30, 665814), (36, 554845), (45, 443876), (60, 332907), (90, 221938), (180, 110969)]