78475995

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{607}}^1$

素因数の和:661

約数の個数: 72

約数和(自身を含む): 156214656

約数和(自身を除く): 77738661

約数列:

[1, 3, 5, 9, 13, 15, 17, 39, 45, 51, 65, 85, 117, 153, 169, 195, 221, 255, 507, 585, 607, 663, 765, 845, 1105, 1521, 1821, 1989, 2535, 2873, 3035, 3315, 5463, 7605, 7891, 8619, 9105, 9945, 10319, 14365, 23673, 25857, 27315, 30957, 39455, 43095, 51595, 71019, 92871, 102583, 118365, 129285, 134147, 154785, 307749, 355095, 402441, 464355, 512915, 670735, 923247, 1207323, 1538745, 1743911, 2012205, 4616235, 5231733, 6036615, 8719555, 15695199, 26158665, 78475995]

約数ペア:

[(1, 78475995), (3, 26158665), (5, 15695199), (9, 8719555), (13, 6036615), (15, 5231733), (17, 4616235), (39, 2012205), (45, 1743911), (51, 1538745), (65, 1207323), (85, 923247), (117, 670735), (153, 512915), (169, 464355), (195, 402441), (221, 355095), (255, 307749), (507, 154785), (585, 134147), (607, 129285), (663, 118365), (765, 102583), (845, 92871), (1105, 71019), (1521, 51595), (1821, 43095), (1989, 39455), (2535, 30957), (2873, 27315), (3035, 25857), (3315, 23673), (5463, 14365), (7605, 10319), (7891, 9945), (8619, 9105)]