20171083436

素因数分解:

$2^2\times 7^2\times {\mathrm{47}}^1\times {\mathrm{929}}^1\times {\mathrm{2357}}^1$

素因数の和:3351

約数の個数: 72

約数和(自身を含む): 41999186880

約数和(自身を除く): 21828103444

約数列:

[1, 2, 4, 7, 14, 28, 47, 49, 94, 98, 188, 196, 329, 658, 929, 1316, 1858, 2303, 2357, 3716, 4606, 4714, 6503, 9212, 9428, 13006, 16499, 26012, 32998, 43663, 45521, 65996, 87326, 91042, 110779, 115493, 174652, 182084, 221558, 230986, 305641, 443116, 461972, 611282, 775453, 1222564, 1550906, 2139487, 2189653, 3101812, 4278974, 4379306, 5428171, 8557948, 8758612, 10856342, 15327571, 21712684, 30655142, 61310284, 102913691, 107292997, 205827382, 214585994, 411654764, 429171988, 720395837, 1440791674, 2881583348, 5042770859, 10085541718, 20171083436]

約数ペア:

[(1, 20171083436), (2, 10085541718), (4, 5042770859), (7, 2881583348), (14, 1440791674), (28, 720395837), (47, 429171988), (49, 411654764), (94, 214585994), (98, 205827382), (188, 107292997), (196, 102913691), (329, 61310284), (658, 30655142), (929, 21712684), (1316, 15327571), (1858, 10856342), (2303, 8758612), (2357, 8557948), (3716, 5428171), (4606, 4379306), (4714, 4278974), (6503, 3101812), (9212, 2189653), (9428, 2139487), (13006, 1550906), (16499, 1222564), (26012, 775453), (32998, 611282), (43663, 461972), (45521, 443116), (65996, 305641), (87326, 230986), (91042, 221558), (110779, 182084), (115493, 174652)]