28801920

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{2143}}^1$

素因数の和:2172

約数の個数: 128

約数和(自身を含む): 104970240

約数和(自身を除く): 76168320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 840, 896, 960, 1120, 1344, 1680, 1920, 2143, 2240, 2688, 3360, 4286, 4480, 6429, 6720, 8572, 10715, 12858, 13440, 15001, 17144, 21430, 25716, 30002, 32145, 34288, 42860, 45003, 51432, 60004, 64290, 68576, 75005, 85720, 90006, 102864, 120008, 128580, 137152, 150010, 171440, 180012, 205728, 225015, 240016, 257160, 274304, 300020, 342880, 360024, 411456, 450030, 480032, 514320, 600040, 685760, 720048, 822912, 900060, 960064, 1028640, 1200080, 1371520, 1440096, 1800120, 1920128, 2057280, 2400160, 2880192, 3600240, 4114560, 4800320, 5760384, 7200480, 9600640, 14400960, 28801920]

約数ペア:

[(1, 28801920), (2, 14400960), (3, 9600640), (4, 7200480), (5, 5760384), (6, 4800320), (7, 4114560), (8, 3600240), (10, 2880192), (12, 2400160), (14, 2057280), (15, 1920128), (16, 1800120), (20, 1440096), (21, 1371520), (24, 1200080), (28, 1028640), (30, 960064), (32, 900060), (35, 822912), (40, 720048), (42, 685760), (48, 600040), (56, 514320), (60, 480032), (64, 450030), (70, 411456), (80, 360024), (84, 342880), (96, 300020), (105, 274304), (112, 257160), (120, 240016), (128, 225015), (140, 205728), (160, 180012), (168, 171440), (192, 150010), (210, 137152), (224, 128580), (240, 120008), (280, 102864), (320, 90006), (336, 85720), (384, 75005), (420, 68576), (448, 64290), (480, 60004), (560, 51432), (640, 45003), (672, 42860), (840, 34288), (896, 32145), (960, 30002), (1120, 25716), (1344, 21430), (1680, 17144), (1920, 15001), (2143, 13440), (2240, 12858), (2688, 10715), (3360, 8572), (4286, 6720), (4480, 6429)]