78830860

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{661}}^1$

素因数の和:826

約数の個数: 48

約数和(自身を含む): 170160480

約数和(自身を除く): 91329620

約数列:

[1, 2, 4, 5, 10, 20, 67, 89, 134, 178, 268, 335, 356, 445, 661, 670, 890, 1322, 1340, 1780, 2644, 3305, 5963, 6610, 11926, 13220, 23852, 29815, 44287, 58829, 59630, 88574, 117658, 119260, 177148, 221435, 235316, 294145, 442870, 588290, 885740, 1176580, 3941543, 7883086, 15766172, 19707715, 39415430, 78830860]

約数ペア:

[(1, 78830860), (2, 39415430), (4, 19707715), (5, 15766172), (10, 7883086), (20, 3941543), (67, 1176580), (89, 885740), (134, 588290), (178, 442870), (268, 294145), (335, 235316), (356, 221435), (445, 177148), (661, 119260), (670, 117658), (890, 88574), (1322, 59630), (1340, 58829), (1780, 44287), (2644, 29815), (3305, 23852), (5963, 13220), (6610, 11926)]