81289260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{34739}}^1$

素因数の和:34767

約数の個数: 72

約数和(自身を含む): 265552560

約数和(自身を除く): 184263300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 34739, 69478, 104217, 138956, 173695, 208434, 312651, 347390, 416868, 451607, 521085, 625302, 694780, 903214, 1042170, 1250604, 1354821, 1563255, 1806428, 2084340, 2258035, 2709642, 3126510, 4064463, 4516070, 5419284, 6253020, 6774105, 8128926, 9032140, 13548210, 16257852, 20322315, 27096420, 40644630, 81289260]

約数ペア:

[(1, 81289260), (2, 40644630), (3, 27096420), (4, 20322315), (5, 16257852), (6, 13548210), (9, 9032140), (10, 8128926), (12, 6774105), (13, 6253020), (15, 5419284), (18, 4516070), (20, 4064463), (26, 3126510), (30, 2709642), (36, 2258035), (39, 2084340), (45, 1806428), (52, 1563255), (60, 1354821), (65, 1250604), (78, 1042170), (90, 903214), (117, 694780), (130, 625302), (156, 521085), (180, 451607), (195, 416868), (234, 347390), (260, 312651), (390, 208434), (468, 173695), (585, 138956), (780, 104217), (1170, 69478), (2340, 34739)]