81450540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{4229}}^1$

素因数の和:4351

約数の個数: 72

約数和(自身を含む): 249434640

約数和(自身を除く): 167984100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 107, 180, 214, 321, 428, 535, 642, 963, 1070, 1284, 1605, 1926, 2140, 3210, 3852, 4229, 4815, 6420, 8458, 9630, 12687, 16916, 19260, 21145, 25374, 38061, 42290, 50748, 63435, 76122, 84580, 126870, 152244, 190305, 253740, 380610, 452503, 761220, 905006, 1357509, 1810012, 2262515, 2715018, 4072527, 4525030, 5430036, 6787545, 8145054, 9050060, 13575090, 16290108, 20362635, 27150180, 40725270, 81450540]

約数ペア:

[(1, 81450540), (2, 40725270), (3, 27150180), (4, 20362635), (5, 16290108), (6, 13575090), (9, 9050060), (10, 8145054), (12, 6787545), (15, 5430036), (18, 4525030), (20, 4072527), (30, 2715018), (36, 2262515), (45, 1810012), (60, 1357509), (90, 905006), (107, 761220), (180, 452503), (214, 380610), (321, 253740), (428, 190305), (535, 152244), (642, 126870), (963, 84580), (1070, 76122), (1284, 63435), (1605, 50748), (1926, 42290), (2140, 38061), (3210, 25374), (3852, 21145), (4229, 19260), (4815, 16916), (6420, 12687), (8458, 9630)]