128331385

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{353}}^1$

素因数の和:442

約数の個数: 64

約数和(自身を含む): 205535232

約数和(自身を除く): 77203847

約数列:

[1, 5, 7, 13, 17, 35, 47, 65, 85, 91, 119, 221, 235, 329, 353, 455, 595, 611, 799, 1105, 1547, 1645, 1765, 2471, 3055, 3995, 4277, 4589, 5593, 6001, 7735, 10387, 12355, 16591, 21385, 22945, 27965, 30005, 32123, 42007, 51935, 72709, 78013, 82955, 116137, 160615, 210035, 215683, 282047, 363545, 390065, 546091, 580685, 1078415, 1410235, 1509781, 1974329, 2730455, 3666611, 7548905, 9871645, 18333055, 25666277, 128331385]

約数ペア:

[(1, 128331385), (5, 25666277), (7, 18333055), (13, 9871645), (17, 7548905), (35, 3666611), (47, 2730455), (65, 1974329), (85, 1509781), (91, 1410235), (119, 1078415), (221, 580685), (235, 546091), (329, 390065), (353, 363545), (455, 282047), (595, 215683), (611, 210035), (799, 160615), (1105, 116137), (1547, 82955), (1645, 78013), (1765, 72709), (2471, 51935), (3055, 42007), (3995, 32123), (4277, 30005), (4589, 27965), (5593, 22945), (6001, 21385), (7735, 16591), (10387, 12355)]