20617830

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{2141}}^1$

素因数の和:2261

約数の個数: 48

約数和(自身を含む): 54132624

約数和(自身を除く): 33514794

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 107, 214, 321, 535, 642, 963, 1070, 1605, 1926, 2141, 3210, 4282, 4815, 6423, 9630, 10705, 12846, 19269, 21410, 32115, 38538, 64230, 96345, 192690, 229087, 458174, 687261, 1145435, 1374522, 2061783, 2290870, 3436305, 4123566, 6872610, 10308915, 20617830]

約数ペア:

[(1, 20617830), (2, 10308915), (3, 6872610), (5, 4123566), (6, 3436305), (9, 2290870), (10, 2061783), (15, 1374522), (18, 1145435), (30, 687261), (45, 458174), (90, 229087), (107, 192690), (214, 96345), (321, 64230), (535, 38538), (642, 32115), (963, 21410), (1070, 19269), (1605, 12846), (1926, 10705), (2141, 9630), (3210, 6423), (4282, 4815)]