72171405

素因数分解:

$3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{113}}^1$

素因数の和:232

約数の個数: 80

約数和(自身を含む): 139043520

約数和(自身を除く): 66872115

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 81, 83, 95, 113, 135, 171, 249, 285, 339, 405, 415, 513, 565, 747, 855, 1017, 1245, 1539, 1577, 1695, 2147, 2241, 2565, 3051, 3735, 4731, 5085, 6441, 6723, 7695, 7885, 9153, 9379, 10735, 11205, 14193, 15255, 19323, 23655, 28137, 32205, 33615, 42579, 45765, 46895, 57969, 70965, 84411, 96615, 127737, 140685, 173907, 178201, 212895, 253233, 289845, 422055, 534603, 638685, 759699, 869535, 891005, 1266165, 1603809, 2673015, 3798495, 4811427, 8019045, 14434281, 24057135, 72171405]

約数ペア:

[(1, 72171405), (3, 24057135), (5, 14434281), (9, 8019045), (15, 4811427), (19, 3798495), (27, 2673015), (45, 1603809), (57, 1266165), (81, 891005), (83, 869535), (95, 759699), (113, 638685), (135, 534603), (171, 422055), (249, 289845), (285, 253233), (339, 212895), (405, 178201), (415, 173907), (513, 140685), (565, 127737), (747, 96615), (855, 84411), (1017, 70965), (1245, 57969), (1539, 46895), (1577, 45765), (1695, 42579), (2147, 33615), (2241, 32205), (2565, 28137), (3051, 23655), (3735, 19323), (4731, 15255), (5085, 14193), (6441, 11205), (6723, 10735), (7695, 9379), (7885, 9153)]