2220777779

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{67}}^1\times {\mathrm{491}}^1$

素因数の和:624

約数の個数: 48

約数和(自身を含む): 2753294976

約数和(自身を除く): 532517197

約数列:

[1, 11, 17, 19, 67, 187, 209, 323, 361, 491, 737, 1139, 1273, 3553, 3971, 5401, 6137, 8347, 9329, 12529, 14003, 21641, 24187, 32897, 67507, 91817, 102619, 158593, 177251, 238051, 266057, 361867, 411179, 559249, 625043, 1744523, 1949761, 3013267, 4522969, 6151739, 6875473, 10625731, 11875817, 33145937, 116883041, 130633987, 201888889, 2220777779]

約数ペア:

[(1, 2220777779), (11, 201888889), (17, 130633987), (19, 116883041), (67, 33145937), (187, 11875817), (209, 10625731), (323, 6875473), (361, 6151739), (491, 4522969), (737, 3013267), (1139, 1949761), (1273, 1744523), (3553, 625043), (3971, 559249), (5401, 411179), (6137, 361867), (8347, 266057), (9329, 238051), (12529, 177251), (14003, 158593), (21641, 102619), (24187, 91817), (32897, 67507)]