20785512

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1831}}^1$

素因数の和:1894

約数の個数: 64

約数和(自身を含む): 58037760

約数和(自身を除く): 37252248

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 43, 44, 66, 86, 88, 129, 132, 172, 258, 264, 344, 473, 516, 946, 1032, 1419, 1831, 1892, 2838, 3662, 3784, 5493, 5676, 7324, 10986, 11352, 14648, 20141, 21972, 40282, 43944, 60423, 78733, 80564, 120846, 157466, 161128, 236199, 241692, 314932, 472398, 483384, 629864, 866063, 944796, 1732126, 1889592, 2598189, 3464252, 5196378, 6928504, 10392756, 20785512]

約数ペア:

[(1, 20785512), (2, 10392756), (3, 6928504), (4, 5196378), (6, 3464252), (8, 2598189), (11, 1889592), (12, 1732126), (22, 944796), (24, 866063), (33, 629864), (43, 483384), (44, 472398), (66, 314932), (86, 241692), (88, 236199), (129, 161128), (132, 157466), (172, 120846), (258, 80564), (264, 78733), (344, 60423), (473, 43944), (516, 40282), (946, 21972), (1032, 20141), (1419, 14648), (1831, 11352), (1892, 10986), (2838, 7324), (3662, 5676), (3784, 5493)]