638997960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{1823}}^1$

素因数の和:1987

約数の個数: 128

約数和(自身を含む): 2017198080

約数和(自身を除く): 1378200120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 127, 138, 184, 230, 254, 276, 345, 381, 460, 508, 552, 635, 690, 762, 920, 1016, 1270, 1380, 1524, 1823, 1905, 2540, 2760, 2921, 3048, 3646, 3810, 5080, 5469, 5842, 7292, 7620, 8763, 9115, 10938, 11684, 14584, 14605, 15240, 17526, 18230, 21876, 23368, 27345, 29210, 35052, 36460, 41929, 43752, 43815, 54690, 58420, 70104, 72920, 83858, 87630, 109380, 116840, 125787, 167716, 175260, 209645, 218760, 231521, 251574, 335432, 350520, 419290, 463042, 503148, 628935, 694563, 838580, 926084, 1006296, 1157605, 1257870, 1389126, 1677160, 1852168, 2315210, 2515740, 2778252, 3472815, 4630420, 5031480, 5324983, 5556504, 6945630, 9260840, 10649966, 13891260, 15974949, 21299932, 26624915, 27782520, 31949898, 42599864, 53249830, 63899796, 79874745, 106499660, 127799592, 159749490, 212999320, 319498980, 638997960]

約数ペア:

[(1, 638997960), (2, 319498980), (3, 212999320), (4, 159749490), (5, 127799592), (6, 106499660), (8, 79874745), (10, 63899796), (12, 53249830), (15, 42599864), (20, 31949898), (23, 27782520), (24, 26624915), (30, 21299932), (40, 15974949), (46, 13891260), (60, 10649966), (69, 9260840), (92, 6945630), (115, 5556504), (120, 5324983), (127, 5031480), (138, 4630420), (184, 3472815), (230, 2778252), (254, 2515740), (276, 2315210), (345, 1852168), (381, 1677160), (460, 1389126), (508, 1257870), (552, 1157605), (635, 1006296), (690, 926084), (762, 838580), (920, 694563), (1016, 628935), (1270, 503148), (1380, 463042), (1524, 419290), (1823, 350520), (1905, 335432), (2540, 251574), (2760, 231521), (2921, 218760), (3048, 209645), (3646, 175260), (3810, 167716), (5080, 125787), (5469, 116840), (5842, 109380), (7292, 87630), (7620, 83858), (8763, 72920), (9115, 70104), (10938, 58420), (11684, 54690), (14584, 43815), (14605, 43752), (15240, 41929), (17526, 36460), (18230, 35052), (21876, 29210), (23368, 27345)]