207880820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{487}}^1\times {\mathrm{3049}}^1$

素因数の和:3552

約数の個数: 48

約数和(自身を含む): 500102400

約数和(自身を除く): 292221580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 487, 974, 1948, 2435, 3049, 3409, 4870, 6098, 6818, 9740, 12196, 13636, 15245, 17045, 21343, 30490, 34090, 42686, 60980, 68180, 85372, 106715, 213430, 426860, 1484863, 2969726, 5939452, 7424315, 10394041, 14848630, 20788082, 29697260, 41576164, 51970205, 103940410, 207880820]

約数ペア:

[(1, 207880820), (2, 103940410), (4, 51970205), (5, 41576164), (7, 29697260), (10, 20788082), (14, 14848630), (20, 10394041), (28, 7424315), (35, 5939452), (70, 2969726), (140, 1484863), (487, 426860), (974, 213430), (1948, 106715), (2435, 85372), (3049, 68180), (3409, 60980), (4870, 42686), (6098, 34090), (6818, 30490), (9740, 21343), (12196, 17045), (13636, 15245)]