2820895

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{431}}^1$

素因数の和:471

約数の個数: 32

約数和(自身を含む): 4478976

約数和(自身を除く): 1658081

約数列:

[1, 5, 7, 11, 17, 35, 55, 77, 85, 119, 187, 385, 431, 595, 935, 1309, 2155, 3017, 4741, 6545, 7327, 15085, 23705, 33187, 36635, 51289, 80597, 165935, 256445, 402985, 564179, 2820895]

約数ペア:

[(1, 2820895), (5, 564179), (7, 402985), (11, 256445), (17, 165935), (35, 80597), (55, 51289), (77, 36635), (85, 33187), (119, 23705), (187, 15085), (385, 7327), (431, 6545), (595, 4741), (935, 3017), (1309, 2155)]