1320231380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{13469}}^1$

素因数の和:13533

約数の個数: 72

約数和(自身を含む): 3105912600

約数和(自身を除く): 1785681220

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 52, 58, 65, 116, 130, 145, 169, 260, 290, 338, 377, 580, 676, 754, 845, 1508, 1690, 1885, 3380, 3770, 4901, 7540, 9802, 13469, 19604, 24505, 26938, 49010, 53876, 67345, 98020, 134690, 175097, 269380, 350194, 390601, 700388, 781202, 875485, 1562404, 1750970, 1953005, 2276261, 3501940, 3906010, 4552522, 5077813, 7812020, 9105044, 10155626, 11381305, 20311252, 22762610, 25389065, 45525220, 50778130, 66011569, 101556260, 132023138, 264046276, 330057845, 660115690, 1320231380]

約数ペア:

[(1, 1320231380), (2, 660115690), (4, 330057845), (5, 264046276), (10, 132023138), (13, 101556260), (20, 66011569), (26, 50778130), (29, 45525220), (52, 25389065), (58, 22762610), (65, 20311252), (116, 11381305), (130, 10155626), (145, 9105044), (169, 7812020), (260, 5077813), (290, 4552522), (338, 3906010), (377, 3501940), (580, 2276261), (676, 1953005), (754, 1750970), (845, 1562404), (1508, 875485), (1690, 781202), (1885, 700388), (3380, 390601), (3770, 350194), (4901, 269380), (7540, 175097), (9802, 134690), (13469, 98020), (19604, 67345), (24505, 53876), (26938, 49010)]