81925740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{223}}^1$

素因数の和:408

約数の個数: 144

約数和(自身を含む): 270536448

約数和(自身を除く): 188610708

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, 157, 180, 195, 223, 234, 260, 314, 390, 446, 468, 471, 585, 628, 669, 780, 785, 892, 942, 1115, 1170, 1338, 1413, 1570, 1884, 2007, 2041, 2230, 2340, 2355, 2676, 2826, 2899, 3140, 3345, 4014, 4082, 4460, 4710, 5652, 5798, 6123, 6690, 7065, 8028, 8164, 8697, 9420, 10035, 10205, 11596, 12246, 13380, 14130, 14495, 17394, 18369, 20070, 20410, 24492, 26091, 28260, 28990, 30615, 34788, 35011, 36738, 40140, 40820, 43485, 52182, 57980, 61230, 70022, 73476, 86970, 91845, 104364, 105033, 122460, 130455, 140044, 173940, 175055, 183690, 210066, 260910, 315099, 350110, 367380, 420132, 455143, 521820, 525165, 630198, 700220, 910286, 1050330, 1260396, 1365429, 1575495, 1820572, 2100660, 2275715, 2730858, 3150990, 4096287, 4551430, 5461716, 6301980, 6827145, 8192574, 9102860, 13654290, 16385148, 20481435, 27308580, 40962870, 81925740]

約数ペア:

[(1, 81925740), (2, 40962870), (3, 27308580), (4, 20481435), (5, 16385148), (6, 13654290), (9, 9102860), (10, 8192574), (12, 6827145), (13, 6301980), (15, 5461716), (18, 4551430), (20, 4096287), (26, 3150990), (30, 2730858), (36, 2275715), (39, 2100660), (45, 1820572), (52, 1575495), (60, 1365429), (65, 1260396), (78, 1050330), (90, 910286), (117, 700220), (130, 630198), (156, 525165), (157, 521820), (180, 455143), (195, 420132), (223, 367380), (234, 350110), (260, 315099), (314, 260910), (390, 210066), (446, 183690), (468, 175055), (471, 173940), (585, 140044), (628, 130455), (669, 122460), (780, 105033), (785, 104364), (892, 91845), (942, 86970), (1115, 73476), (1170, 70022), (1338, 61230), (1413, 57980), (1570, 52182), (1884, 43485), (2007, 40820), (2041, 40140), (2230, 36738), (2340, 35011), (2355, 34788), (2676, 30615), (2826, 28990), (2899, 28260), (3140, 26091), (3345, 24492), (4014, 20410), (4082, 20070), (4460, 18369), (4710, 17394), (5652, 14495), (5798, 14130), (6123, 13380), (6690, 12246), (7065, 11596), (8028, 10205), (8164, 10035), (8697, 9420)]