16978936840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{13692691}}^1$

素因数の和:13692733

約数の個数: 32

約数和(自身を含む): 39434952960

約数和(自身を除く): 22456016120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 13692691, 27385382, 54770764, 68463455, 109541528, 136926910, 273853820, 424473421, 547707640, 848946842, 1697893684, 2122367105, 3395787368, 4244734210, 8489468420, 16978936840]

約数ペア:

[(1, 16978936840), (2, 8489468420), (4, 4244734210), (5, 3395787368), (8, 2122367105), (10, 1697893684), (20, 848946842), (31, 547707640), (40, 424473421), (62, 273853820), (124, 136926910), (155, 109541528), (248, 68463455), (310, 54770764), (620, 27385382), (1240, 13692691)]