221770052

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{2999}}^1$

素因数の和:3168

約数の個数: 48

約数和(自身を含む): 470400000

約数和(自身を除く): 248629948

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 139, 266, 278, 532, 556, 973, 1946, 2641, 2999, 3892, 5282, 5998, 10564, 11996, 18487, 20993, 36974, 41986, 56981, 73948, 83972, 113962, 227924, 398867, 416861, 797734, 833722, 1595468, 1667444, 2918027, 5836054, 7920359, 11672108, 15840718, 31681436, 55442513, 110885026, 221770052]

約数ペア:

[(1, 221770052), (2, 110885026), (4, 55442513), (7, 31681436), (14, 15840718), (19, 11672108), (28, 7920359), (38, 5836054), (76, 2918027), (133, 1667444), (139, 1595468), (266, 833722), (278, 797734), (532, 416861), (556, 398867), (973, 227924), (1946, 113962), (2641, 83972), (2999, 73948), (3892, 56981), (5282, 41986), (5998, 36974), (10564, 20993), (11996, 18487)]