20126810

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{229}}^1$

素因数の和:311

約数の個数: 64

約数和(自身を含む): 42923520

約数和(自身を除く): 22796710

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 47, 55, 85, 94, 110, 170, 187, 229, 235, 374, 458, 470, 517, 799, 935, 1034, 1145, 1598, 1870, 2290, 2519, 2585, 3893, 3995, 5038, 5170, 7786, 7990, 8789, 10763, 12595, 17578, 19465, 21526, 25190, 38930, 42823, 43945, 53815, 85646, 87890, 107630, 118393, 182971, 214115, 236786, 365942, 428230, 591965, 914855, 1183930, 1829710, 2012681, 4025362, 10063405, 20126810]

約数ペア:

[(1, 20126810), (2, 10063405), (5, 4025362), (10, 2012681), (11, 1829710), (17, 1183930), (22, 914855), (34, 591965), (47, 428230), (55, 365942), (85, 236786), (94, 214115), (110, 182971), (170, 118393), (187, 107630), (229, 87890), (235, 85646), (374, 53815), (458, 43945), (470, 42823), (517, 38930), (799, 25190), (935, 21526), (1034, 19465), (1145, 17578), (1598, 12595), (1870, 10763), (2290, 8789), (2519, 7990), (2585, 7786), (3893, 5170), (3995, 5038)]