20857589165

素因数分解:

$5^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{491}}^1\times {\mathrm{2089}}^1$

素因数の和:2682

約数の個数: 48

約数和(自身を含む): 29540427840

約数和(自身を除く): 8682838675

約数列:

[1, 5, 7, 35, 49, 83, 245, 415, 491, 581, 2089, 2455, 2905, 3437, 4067, 10445, 14623, 17185, 20335, 24059, 40753, 73115, 102361, 120295, 173387, 203765, 285271, 511805, 866935, 1025699, 1213709, 1426355, 1996897, 5128495, 6068545, 7179893, 8495963, 9984485, 35899465, 42479815, 50259251, 85133017, 251296255, 425665085, 595931119, 2979655595, 4171517833, 20857589165]

約数ペア:

[(1, 20857589165), (5, 4171517833), (7, 2979655595), (35, 595931119), (49, 425665085), (83, 251296255), (245, 85133017), (415, 50259251), (491, 42479815), (581, 35899465), (2089, 9984485), (2455, 8495963), (2905, 7179893), (3437, 6068545), (4067, 5128495), (10445, 1996897), (14623, 1426355), (17185, 1213709), (20335, 1025699), (24059, 866935), (40753, 511805), (73115, 285271), (102361, 203765), (120295, 173387)]