545860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{557}}^1$

素因数の和:580

約数の個数: 36

約数和(自身を含む): 1335852

約数和(自身を除く): 789992

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 557, 980, 1114, 2228, 2785, 3899, 5570, 7798, 11140, 15596, 19495, 27293, 38990, 54586, 77980, 109172, 136465, 272930, 545860]

約数ペア:

[(1, 545860), (2, 272930), (4, 136465), (5, 109172), (7, 77980), (10, 54586), (14, 38990), (20, 27293), (28, 19495), (35, 15596), (49, 11140), (70, 7798), (98, 5570), (140, 3899), (196, 2785), (245, 2228), (490, 1114), (557, 980)]