20187675

素因数分解:

$3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1$

素因数の和:169

約数の個数: 72

約数和(自身を含む): 38997504

約数和(自身を除く): 18809829

約数列:

[1, 3, 5, 9, 15, 23, 25, 45, 47, 69, 75, 83, 115, 141, 207, 225, 235, 249, 345, 415, 423, 575, 705, 747, 1035, 1081, 1175, 1245, 1725, 1909, 2075, 2115, 3243, 3525, 3735, 3901, 5175, 5405, 5727, 6225, 9545, 9729, 10575, 11703, 16215, 17181, 18675, 19505, 27025, 28635, 35109, 47725, 48645, 58515, 81075, 85905, 89723, 97525, 143175, 175545, 243225, 269169, 292575, 429525, 448615, 807507, 877725, 1345845, 2243075, 4037535, 6729225, 20187675]

約数ペア:

[(1, 20187675), (3, 6729225), (5, 4037535), (9, 2243075), (15, 1345845), (23, 877725), (25, 807507), (45, 448615), (47, 429525), (69, 292575), (75, 269169), (83, 243225), (115, 175545), (141, 143175), (207, 97525), (225, 89723), (235, 85905), (249, 81075), (345, 58515), (415, 48645), (423, 47725), (575, 35109), (705, 28635), (747, 27025), (1035, 19505), (1081, 18675), (1175, 17181), (1245, 16215), (1725, 11703), (1909, 10575), (2075, 9729), (2115, 9545), (3243, 6225), (3525, 5727), (3735, 5405), (3901, 5175)]