128821320

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{659}}^1$

素因数の和:860

約数の個数: 128

約数和(自身を含む): 432432000

約数和(自身を除く): 303610680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 181, 216, 270, 360, 362, 540, 543, 659, 724, 905, 1080, 1086, 1318, 1448, 1629, 1810, 1977, 2172, 2636, 2715, 3258, 3295, 3620, 3954, 4344, 4887, 5272, 5430, 5931, 6516, 6590, 7240, 7908, 8145, 9774, 9885, 10860, 11862, 13032, 13180, 15816, 16290, 17793, 19548, 19770, 21720, 23724, 24435, 26360, 29655, 32580, 35586, 39096, 39540, 47448, 48870, 59310, 65160, 71172, 79080, 88965, 97740, 118620, 119279, 142344, 177930, 195480, 237240, 238558, 355860, 357837, 477116, 596395, 711720, 715674, 954232, 1073511, 1192790, 1431348, 1789185, 2147022, 2385580, 2862696, 3220533, 3578370, 4294044, 4771160, 5367555, 6441066, 7156740, 8588088, 10735110, 12882132, 14313480, 16102665, 21470220, 25764264, 32205330, 42940440, 64410660, 128821320]

約数ペア:

[(1, 128821320), (2, 64410660), (3, 42940440), (4, 32205330), (5, 25764264), (6, 21470220), (8, 16102665), (9, 14313480), (10, 12882132), (12, 10735110), (15, 8588088), (18, 7156740), (20, 6441066), (24, 5367555), (27, 4771160), (30, 4294044), (36, 3578370), (40, 3220533), (45, 2862696), (54, 2385580), (60, 2147022), (72, 1789185), (90, 1431348), (108, 1192790), (120, 1073511), (135, 954232), (180, 715674), (181, 711720), (216, 596395), (270, 477116), (360, 357837), (362, 355860), (540, 238558), (543, 237240), (659, 195480), (724, 177930), (905, 142344), (1080, 119279), (1086, 118620), (1318, 97740), (1448, 88965), (1629, 79080), (1810, 71172), (1977, 65160), (2172, 59310), (2636, 48870), (2715, 47448), (3258, 39540), (3295, 39096), (3620, 35586), (3954, 32580), (4344, 29655), (4887, 26360), (5272, 24435), (5430, 23724), (5931, 21720), (6516, 19770), (6590, 19548), (7240, 17793), (7908, 16290), (8145, 15816), (9774, 13180), (9885, 13032), (10860, 11862)]