2018989720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{28151}}^1$

素因数の和:28336

約数の個数: 64

約数和(自身を含む): 4986282240

約数和(自身を除く): 2967292520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 163, 220, 326, 440, 652, 815, 1304, 1630, 1793, 3260, 3586, 6520, 7172, 8965, 14344, 17930, 28151, 35860, 56302, 71720, 112604, 140755, 225208, 281510, 309661, 563020, 619322, 1126040, 1238644, 1548305, 2477288, 3096610, 4588613, 6193220, 9177226, 12386440, 18354452, 22943065, 36708904, 45886130, 50474743, 91772260, 100949486, 183544520, 201898972, 252373715, 403797944, 504747430, 1009494860, 2018989720]

約数ペア:

[(1, 2018989720), (2, 1009494860), (4, 504747430), (5, 403797944), (8, 252373715), (10, 201898972), (11, 183544520), (20, 100949486), (22, 91772260), (40, 50474743), (44, 45886130), (55, 36708904), (88, 22943065), (110, 18354452), (163, 12386440), (220, 9177226), (326, 6193220), (440, 4588613), (652, 3096610), (815, 2477288), (1304, 1548305), (1630, 1238644), (1793, 1126040), (3260, 619322), (3586, 563020), (6520, 309661), (7172, 281510), (8965, 225208), (14344, 140755), (17930, 112604), (28151, 71720), (35860, 56302)]