20280645111909

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{25771}}^1\times {\mathrm{151717}}^1$

素因数の和:177530

約数の個数: 64

約数和(自身を含む): 35034283612160

約数和(自身を除く): 14753638500251

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 91, 133, 247, 273, 399, 741, 1729, 5187, 25771, 77313, 151717, 180397, 335023, 455151, 489649, 541191, 1005069, 1062019, 1468947, 1972321, 2345161, 2882623, 3186057, 3427543, 5916963, 6365437, 7035483, 8647869, 10282629, 13806247, 19096311, 20178361, 37474099, 41418741, 44558059, 60535083, 112422297, 133674177, 262318693, 786956079, 3909898807, 11729696421, 27369291649, 50828684491, 74288077333, 82107874947, 152486053473, 222864231999, 355800791437, 520016541331, 965745005329, 1067402374311, 1560049623993, 2897235015987, 6760215037303, 20280645111909]

約数ペア:

[(1, 20280645111909), (3, 6760215037303), (7, 2897235015987), (13, 1560049623993), (19, 1067402374311), (21, 965745005329), (39, 520016541331), (57, 355800791437), (91, 222864231999), (133, 152486053473), (247, 82107874947), (273, 74288077333), (399, 50828684491), (741, 27369291649), (1729, 11729696421), (5187, 3909898807), (25771, 786956079), (77313, 262318693), (151717, 133674177), (180397, 112422297), (335023, 60535083), (455151, 44558059), (489649, 41418741), (541191, 37474099), (1005069, 20178361), (1062019, 19096311), (1468947, 13806247), (1972321, 10282629), (2345161, 8647869), (2882623, 7035483), (3186057, 6365437), (3427543, 5916963)]