19716420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{5387}}^1$

素因数の和:5460

約数の個数: 48

約数和(自身を含む): 56121408

約数和(自身を除く): 36404988

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 61, 122, 183, 244, 305, 366, 610, 732, 915, 1220, 1830, 3660, 5387, 10774, 16161, 21548, 26935, 32322, 53870, 64644, 80805, 107740, 161610, 323220, 328607, 657214, 985821, 1314428, 1643035, 1971642, 3286070, 3943284, 4929105, 6572140, 9858210, 19716420]

約数ペア:

[(1, 19716420), (2, 9858210), (3, 6572140), (4, 4929105), (5, 3943284), (6, 3286070), (10, 1971642), (12, 1643035), (15, 1314428), (20, 985821), (30, 657214), (60, 328607), (61, 323220), (122, 161610), (183, 107740), (244, 80805), (305, 64644), (366, 53870), (610, 32322), (732, 26935), (915, 21548), (1220, 16161), (1830, 10774), (3660, 5387)]