199744580

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{203821}}^1$

素因数の和:203844

約数の個数: 36

約数和(自身を含む): 487949868

約数和(自身を除く): 288205288

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 203821, 407642, 815284, 1019105, 1426747, 2038210, 2853494, 4076420, 5706988, 7133735, 9987229, 14267470, 19974458, 28534940, 39948916, 49936145, 99872290, 199744580]

約数ペア:

[(1, 199744580), (2, 99872290), (4, 49936145), (5, 39948916), (7, 28534940), (10, 19974458), (14, 14267470), (20, 9987229), (28, 7133735), (35, 5706988), (49, 4076420), (70, 2853494), (98, 2038210), (140, 1426747), (196, 1019105), (245, 815284), (490, 407642), (980, 203821)]