20020236440

素因数分解:

$2^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{1578883}}^1$

素因数の和:1579211

約数の個数: 32

約数和(自身を含む): 45187660080

約数和(自身を除く): 25167423640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 317, 634, 1268, 1585, 2536, 3170, 6340, 12680, 1578883, 3157766, 6315532, 7894415, 12631064, 15788830, 31577660, 63155320, 500505911, 1001011822, 2002023644, 2502529555, 4004047288, 5005059110, 10010118220, 20020236440]

約数ペア:

[(1, 20020236440), (2, 10010118220), (4, 5005059110), (5, 4004047288), (8, 2502529555), (10, 2002023644), (20, 1001011822), (40, 500505911), (317, 63155320), (634, 31577660), (1268, 15788830), (1585, 12631064), (2536, 7894415), (3170, 6315532), (6340, 3157766), (12680, 1578883)]