128679840

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{9929}}^1$

素因数の和:9956

約数の個数: 120

約数和(自身を含む): 454178340

約数和(自身を除く): 325498500

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 96, 108, 120, 135, 144, 160, 162, 180, 216, 240, 270, 288, 324, 360, 405, 432, 480, 540, 648, 720, 810, 864, 1080, 1296, 1440, 1620, 2160, 2592, 3240, 4320, 6480, 9929, 12960, 19858, 29787, 39716, 49645, 59574, 79432, 89361, 99290, 119148, 148935, 158864, 178722, 198580, 238296, 268083, 297870, 317728, 357444, 397160, 446805, 476592, 536166, 595740, 714888, 794320, 804249, 893610, 953184, 1072332, 1191480, 1340415, 1429776, 1588640, 1608498, 1787220, 2144664, 2382960, 2680830, 2859552, 3216996, 3574440, 4021245, 4289328, 4765920, 5361660, 6433992, 7148880, 8042490, 8578656, 10723320, 12867984, 14297760, 16084980, 21446640, 25735968, 32169960, 42893280, 64339920, 128679840]

約数ペア:

[(1, 128679840), (2, 64339920), (3, 42893280), (4, 32169960), (5, 25735968), (6, 21446640), (8, 16084980), (9, 14297760), (10, 12867984), (12, 10723320), (15, 8578656), (16, 8042490), (18, 7148880), (20, 6433992), (24, 5361660), (27, 4765920), (30, 4289328), (32, 4021245), (36, 3574440), (40, 3216996), (45, 2859552), (48, 2680830), (54, 2382960), (60, 2144664), (72, 1787220), (80, 1608498), (81, 1588640), (90, 1429776), (96, 1340415), (108, 1191480), (120, 1072332), (135, 953184), (144, 893610), (160, 804249), (162, 794320), (180, 714888), (216, 595740), (240, 536166), (270, 476592), (288, 446805), (324, 397160), (360, 357444), (405, 317728), (432, 297870), (480, 268083), (540, 238296), (648, 198580), (720, 178722), (810, 158864), (864, 148935), (1080, 119148), (1296, 99290), (1440, 89361), (1620, 79432), (2160, 59574), (2592, 49645), (3240, 39716), (4320, 29787), (6480, 19858), (9929, 12960)]