264408920

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1$

素因数の和:265

約数の個数: 128

約数和(自身を含む): 654704640

約数和(自身を除く): 390295720

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 31, 40, 46, 62, 73, 92, 115, 124, 127, 146, 155, 184, 230, 248, 254, 292, 310, 365, 460, 508, 584, 620, 635, 713, 730, 920, 1016, 1240, 1270, 1426, 1460, 1679, 2263, 2540, 2852, 2920, 2921, 3358, 3565, 3937, 4526, 5080, 5704, 5842, 6716, 7130, 7874, 8395, 9052, 9271, 11315, 11684, 13432, 14260, 14605, 15748, 16790, 18104, 18542, 19685, 22630, 23368, 28520, 29210, 31496, 33580, 37084, 39370, 45260, 46355, 52049, 58420, 67160, 74168, 78740, 90520, 90551, 92710, 104098, 116840, 157480, 181102, 185420, 208196, 213233, 260245, 287401, 362204, 370840, 416392, 426466, 452755, 520490, 574802, 724408, 852932, 905510, 1040980, 1066165, 1149604, 1437005, 1705864, 1811020, 2081960, 2132330, 2299208, 2874010, 3622040, 4264660, 5748020, 6610223, 8529320, 11496040, 13220446, 26440892, 33051115, 52881784, 66102230, 132204460, 264408920]

約数ペア:

[(1, 264408920), (2, 132204460), (4, 66102230), (5, 52881784), (8, 33051115), (10, 26440892), (20, 13220446), (23, 11496040), (31, 8529320), (40, 6610223), (46, 5748020), (62, 4264660), (73, 3622040), (92, 2874010), (115, 2299208), (124, 2132330), (127, 2081960), (146, 1811020), (155, 1705864), (184, 1437005), (230, 1149604), (248, 1066165), (254, 1040980), (292, 905510), (310, 852932), (365, 724408), (460, 574802), (508, 520490), (584, 452755), (620, 426466), (635, 416392), (713, 370840), (730, 362204), (920, 287401), (1016, 260245), (1240, 213233), (1270, 208196), (1426, 185420), (1460, 181102), (1679, 157480), (2263, 116840), (2540, 104098), (2852, 92710), (2920, 90551), (2921, 90520), (3358, 78740), (3565, 74168), (3937, 67160), (4526, 58420), (5080, 52049), (5704, 46355), (5842, 45260), (6716, 39370), (7130, 37084), (7874, 33580), (8395, 31496), (9052, 29210), (9271, 28520), (11315, 23368), (11684, 22630), (13432, 19685), (14260, 18542), (14605, 18104), (15748, 16790)]