1949759980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{1989551}}^1$

素因数の和:1989574

約数の個数: 36

約数和(自身を含む): 4762987488

約数和(自身を除く): 2813227508

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 1989551, 3979102, 7958204, 9947755, 13926857, 19895510, 27853714, 39791020, 55707428, 69634285, 97487999, 139268570, 194975998, 278537140, 389951996, 487439995, 974879990, 1949759980]

約数ペア:

[(1, 1949759980), (2, 974879990), (4, 487439995), (5, 389951996), (7, 278537140), (10, 194975998), (14, 139268570), (20, 97487999), (28, 69634285), (35, 55707428), (49, 39791020), (70, 27853714), (98, 19895510), (140, 13926857), (196, 9947755), (245, 7958204), (490, 3979102), (980, 1989551)]