20165131675

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{293}}^1\times {\mathrm{421}}^1\times {\mathrm{503}}^1$

素因数の和:1240

約数の個数: 48

約数和(自身を含む): 27138138048

約数和(自身を除く): 6973006373

約数列:

[1, 5, 13, 25, 65, 293, 325, 421, 503, 1465, 2105, 2515, 3809, 5473, 6539, 7325, 10525, 12575, 19045, 27365, 32695, 95225, 123353, 136825, 147379, 163475, 211763, 616765, 736895, 1058815, 1603589, 1915927, 2752919, 3083825, 3684475, 5294075, 8017945, 9579635, 13764595, 40089725, 47898175, 62046559, 68822975, 310232795, 806605267, 1551163975, 4033026335, 20165131675]

約数ペア:

[(1, 20165131675), (5, 4033026335), (13, 1551163975), (25, 806605267), (65, 310232795), (293, 68822975), (325, 62046559), (421, 47898175), (503, 40089725), (1465, 13764595), (2105, 9579635), (2515, 8017945), (3809, 5294075), (5473, 3684475), (6539, 3083825), (7325, 2752919), (10525, 1915927), (12575, 1603589), (19045, 1058815), (27365, 736895), (32695, 616765), (95225, 211763), (123353, 163475), (136825, 147379)]