20254865390

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{313}}^1\times {\mathrm{347}}^1\times {\mathrm{1097}}^1$

素因数の和:1781

約数の個数: 64

約数和(自身を含む): 38873732544

約数和(自身を除く): 18618867154

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 313, 347, 626, 694, 1097, 1565, 1735, 2194, 3130, 3470, 5321, 5485, 5899, 10642, 10970, 11798, 18649, 26605, 29495, 37298, 53210, 58990, 93245, 108611, 186490, 217222, 343361, 380659, 543055, 686722, 761318, 1086110, 1716805, 1846387, 1903295, 3433610, 3692774, 3806590, 5837137, 6471203, 9231935, 11674274, 12942406, 18463870, 29185685, 32356015, 58371370, 64712030, 119146267, 238292534, 595731335, 1191462670, 2025486539, 4050973078, 10127432695, 20254865390]

約数ペア:

[(1, 20254865390), (2, 10127432695), (5, 4050973078), (10, 2025486539), (17, 1191462670), (34, 595731335), (85, 238292534), (170, 119146267), (313, 64712030), (347, 58371370), (626, 32356015), (694, 29185685), (1097, 18463870), (1565, 12942406), (1735, 11674274), (2194, 9231935), (3130, 6471203), (3470, 5837137), (5321, 3806590), (5485, 3692774), (5899, 3433610), (10642, 1903295), (10970, 1846387), (11798, 1716805), (18649, 1086110), (26605, 761318), (29495, 686722), (37298, 543055), (53210, 380659), (58990, 343361), (93245, 217222), (108611, 186490)]