20134205

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1$

素因数の和:198

約数の個数: 64

約数和(自身を含む): 33384960

約数和(自身を除く): 13250755

約数列:

[1, 5, 7, 13, 17, 19, 35, 65, 85, 91, 95, 119, 133, 137, 221, 247, 323, 455, 595, 665, 685, 959, 1105, 1235, 1547, 1615, 1729, 1781, 2261, 2329, 2603, 4199, 4795, 7735, 8645, 8905, 11305, 11645, 12467, 13015, 16303, 18221, 20995, 29393, 30277, 33839, 44251, 62335, 81515, 91105, 146965, 151385, 169195, 211939, 221255, 236873, 309757, 575263, 1059695, 1184365, 1548785, 2876315, 4026841, 20134205]

約数ペア:

[(1, 20134205), (5, 4026841), (7, 2876315), (13, 1548785), (17, 1184365), (19, 1059695), (35, 575263), (65, 309757), (85, 236873), (91, 221255), (95, 211939), (119, 169195), (133, 151385), (137, 146965), (221, 91105), (247, 81515), (323, 62335), (455, 44251), (595, 33839), (665, 30277), (685, 29393), (959, 20995), (1105, 18221), (1235, 16303), (1547, 13015), (1615, 12467), (1729, 11645), (1781, 11305), (2261, 8905), (2329, 8645), (2603, 7735), (4199, 4795)]