28306560

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{641}}^1$

素因数の和:686

約数の個数: 128

約数和(自身を含む): 94296960

約数和(自身を除く): 65990400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 32, 40, 46, 48, 60, 64, 69, 80, 92, 96, 115, 120, 128, 138, 160, 184, 192, 230, 240, 276, 320, 345, 368, 384, 460, 480, 552, 640, 641, 690, 736, 920, 960, 1104, 1282, 1380, 1472, 1840, 1920, 1923, 2208, 2564, 2760, 2944, 3205, 3680, 3846, 4416, 5128, 5520, 6410, 7360, 7692, 8832, 9615, 10256, 11040, 12820, 14720, 14743, 15384, 19230, 20512, 22080, 25640, 29486, 30768, 38460, 41024, 44160, 44229, 51280, 58972, 61536, 73715, 76920, 82048, 88458, 102560, 117944, 123072, 147430, 153840, 176916, 205120, 221145, 235888, 246144, 294860, 307680, 353832, 410240, 442290, 471776, 589720, 615360, 707664, 884580, 943552, 1179440, 1230720, 1415328, 1769160, 1887104, 2358880, 2830656, 3538320, 4717760, 5661312, 7076640, 9435520, 14153280, 28306560]

約数ペア:

[(1, 28306560), (2, 14153280), (3, 9435520), (4, 7076640), (5, 5661312), (6, 4717760), (8, 3538320), (10, 2830656), (12, 2358880), (15, 1887104), (16, 1769160), (20, 1415328), (23, 1230720), (24, 1179440), (30, 943552), (32, 884580), (40, 707664), (46, 615360), (48, 589720), (60, 471776), (64, 442290), (69, 410240), (80, 353832), (92, 307680), (96, 294860), (115, 246144), (120, 235888), (128, 221145), (138, 205120), (160, 176916), (184, 153840), (192, 147430), (230, 123072), (240, 117944), (276, 102560), (320, 88458), (345, 82048), (368, 76920), (384, 73715), (460, 61536), (480, 58972), (552, 51280), (640, 44229), (641, 44160), (690, 41024), (736, 38460), (920, 30768), (960, 29486), (1104, 25640), (1282, 22080), (1380, 20512), (1472, 19230), (1840, 15384), (1920, 14743), (1923, 14720), (2208, 12820), (2564, 11040), (2760, 10256), (2944, 9615), (3205, 8832), (3680, 7692), (3846, 7360), (4416, 6410), (5128, 5520)]