28225920

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{241}}^1$

素因数の和:324

約数の個数: 128

約数和(自身を含む): 91824480

約数和(自身を除く): 63598560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 61, 64, 80, 96, 120, 122, 128, 160, 183, 192, 240, 241, 244, 305, 320, 366, 384, 480, 482, 488, 610, 640, 723, 732, 915, 960, 964, 976, 1205, 1220, 1446, 1464, 1830, 1920, 1928, 1952, 2410, 2440, 2892, 2928, 3615, 3660, 3856, 3904, 4820, 4880, 5784, 5856, 7230, 7320, 7712, 7808, 9640, 9760, 11568, 11712, 14460, 14640, 14701, 15424, 19280, 19520, 23136, 23424, 28920, 29280, 29402, 30848, 38560, 39040, 44103, 46272, 57840, 58560, 58804, 73505, 77120, 88206, 92544, 115680, 117120, 117608, 147010, 154240, 176412, 220515, 231360, 235216, 294020, 352824, 441030, 462720, 470432, 588040, 705648, 882060, 940864, 1176080, 1411296, 1764120, 1881728, 2352160, 2822592, 3528240, 4704320, 5645184, 7056480, 9408640, 14112960, 28225920]

約数ペア:

[(1, 28225920), (2, 14112960), (3, 9408640), (4, 7056480), (5, 5645184), (6, 4704320), (8, 3528240), (10, 2822592), (12, 2352160), (15, 1881728), (16, 1764120), (20, 1411296), (24, 1176080), (30, 940864), (32, 882060), (40, 705648), (48, 588040), (60, 470432), (61, 462720), (64, 441030), (80, 352824), (96, 294020), (120, 235216), (122, 231360), (128, 220515), (160, 176412), (183, 154240), (192, 147010), (240, 117608), (241, 117120), (244, 115680), (305, 92544), (320, 88206), (366, 77120), (384, 73505), (480, 58804), (482, 58560), (488, 57840), (610, 46272), (640, 44103), (723, 39040), (732, 38560), (915, 30848), (960, 29402), (964, 29280), (976, 28920), (1205, 23424), (1220, 23136), (1446, 19520), (1464, 19280), (1830, 15424), (1920, 14701), (1928, 14640), (1952, 14460), (2410, 11712), (2440, 11568), (2892, 9760), (2928, 9640), (3615, 7808), (3660, 7712), (3856, 7320), (3904, 7230), (4820, 5856), (4880, 5784)]