128805120

素因数分解:

$2^8\times 3^3\times 5^1\times {\mathrm{3727}}^1$

素因数の和:3757

約数の個数: 144

約数和(自身を含む): 457201920

約数和(自身を除く): 328396800

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, 64, 72, 80, 90, 96, 108, 120, 128, 135, 144, 160, 180, 192, 216, 240, 256, 270, 288, 320, 360, 384, 432, 480, 540, 576, 640, 720, 768, 864, 960, 1080, 1152, 1280, 1440, 1728, 1920, 2160, 2304, 2880, 3456, 3727, 3840, 4320, 5760, 6912, 7454, 8640, 11181, 11520, 14908, 17280, 18635, 22362, 29816, 33543, 34560, 37270, 44724, 55905, 59632, 67086, 74540, 89448, 100629, 111810, 119264, 134172, 149080, 167715, 178896, 201258, 223620, 238528, 268344, 298160, 335430, 357792, 402516, 447240, 477056, 503145, 536688, 596320, 670860, 715584, 805032, 894480, 954112, 1006290, 1073376, 1192640, 1341720, 1431168, 1610064, 1788960, 2012580, 2146752, 2385280, 2683440, 2862336, 3220128, 3577920, 4025160, 4293504, 4770560, 5366880, 6440256, 7155840, 8050320, 8587008, 10733760, 12880512, 14311680, 16100640, 21467520, 25761024, 32201280, 42935040, 64402560, 128805120]

約数ペア:

[(1, 128805120), (2, 64402560), (3, 42935040), (4, 32201280), (5, 25761024), (6, 21467520), (8, 16100640), (9, 14311680), (10, 12880512), (12, 10733760), (15, 8587008), (16, 8050320), (18, 7155840), (20, 6440256), (24, 5366880), (27, 4770560), (30, 4293504), (32, 4025160), (36, 3577920), (40, 3220128), (45, 2862336), (48, 2683440), (54, 2385280), (60, 2146752), (64, 2012580), (72, 1788960), (80, 1610064), (90, 1431168), (96, 1341720), (108, 1192640), (120, 1073376), (128, 1006290), (135, 954112), (144, 894480), (160, 805032), (180, 715584), (192, 670860), (216, 596320), (240, 536688), (256, 503145), (270, 477056), (288, 447240), (320, 402516), (360, 357792), (384, 335430), (432, 298160), (480, 268344), (540, 238528), (576, 223620), (640, 201258), (720, 178896), (768, 167715), (864, 149080), (960, 134172), (1080, 119264), (1152, 111810), (1280, 100629), (1440, 89448), (1728, 74540), (1920, 67086), (2160, 59632), (2304, 55905), (2880, 44724), (3456, 37270), (3727, 34560), (3840, 33543), (4320, 29816), (5760, 22362), (6912, 18635), (7454, 17280), (8640, 14908), (11181, 11520)]