428890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{557}}^1$

素因数の和:582

約数の個数: 32

約数和(自身を含む): 964224

約数和(自身を除く): 535334

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 557, 770, 1114, 2785, 3899, 5570, 6127, 7798, 12254, 19495, 30635, 38990, 42889, 61270, 85778, 214445, 428890]

約数ペア:

[(1, 428890), (2, 214445), (5, 85778), (7, 61270), (10, 42889), (11, 38990), (14, 30635), (22, 19495), (35, 12254), (55, 7798), (70, 6127), (77, 5570), (110, 3899), (154, 2785), (385, 1114), (557, 770)]