27857375

素因数分解:

$5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:145

約数の個数: 64

約数和(自身を含む): 44728320

約数和(自身を除く): 16870945

約数列:

[1, 5, 7, 13, 25, 31, 35, 65, 79, 91, 125, 155, 175, 217, 325, 395, 403, 455, 553, 775, 875, 1027, 1085, 1625, 1975, 2015, 2275, 2449, 2765, 2821, 3875, 5135, 5425, 7189, 9875, 10075, 11375, 12245, 13825, 14105, 17143, 25675, 27125, 31837, 35945, 50375, 61225, 69125, 70525, 85715, 128375, 159185, 179725, 222859, 306125, 352625, 428575, 795925, 898625, 1114295, 2142875, 3979625, 5571475, 27857375]

約数ペア:

[(1, 27857375), (5, 5571475), (7, 3979625), (13, 2142875), (25, 1114295), (31, 898625), (35, 795925), (65, 428575), (79, 352625), (91, 306125), (125, 222859), (155, 179725), (175, 159185), (217, 128375), (325, 85715), (395, 70525), (403, 69125), (455, 61225), (553, 50375), (775, 35945), (875, 31837), (1027, 27125), (1085, 25675), (1625, 17143), (1975, 14105), (2015, 13825), (2275, 12245), (2449, 11375), (2765, 10075), (2821, 9875), (3875, 7189), (5135, 5425)]