81611280

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{37783}}^1$

素因数の和:37805

約数の個数: 80

約数和(自身を含む): 281112960

約数和(自身を除く): 199501680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 432, 540, 720, 1080, 2160, 37783, 75566, 113349, 151132, 188915, 226698, 302264, 340047, 377830, 453396, 566745, 604528, 680094, 755660, 906792, 1020141, 1133490, 1360188, 1511320, 1700235, 1813584, 2040282, 2266980, 2720376, 3022640, 3400470, 4080564, 4533960, 5100705, 5440752, 6800940, 8161128, 9067920, 10201410, 13601880, 16322256, 20402820, 27203760, 40805640, 81611280]

約数ペア:

[(1, 81611280), (2, 40805640), (3, 27203760), (4, 20402820), (5, 16322256), (6, 13601880), (8, 10201410), (9, 9067920), (10, 8161128), (12, 6800940), (15, 5440752), (16, 5100705), (18, 4533960), (20, 4080564), (24, 3400470), (27, 3022640), (30, 2720376), (36, 2266980), (40, 2040282), (45, 1813584), (48, 1700235), (54, 1511320), (60, 1360188), (72, 1133490), (80, 1020141), (90, 906792), (108, 755660), (120, 680094), (135, 604528), (144, 566745), (180, 453396), (216, 377830), (240, 340047), (270, 302264), (360, 226698), (432, 188915), (540, 151132), (720, 113349), (1080, 75566), (2160, 37783)]