28861456

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1$

素因数の和:216

約数の個数: 80

約数和(自身を含む): 64926400

約数和(自身を除く): 36064944

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 67, 76, 104, 109, 134, 152, 208, 218, 247, 268, 304, 436, 494, 536, 871, 872, 988, 1072, 1273, 1417, 1742, 1744, 1976, 2071, 2546, 2834, 3484, 3952, 4142, 5092, 5668, 6968, 7303, 8284, 10184, 11336, 13936, 14606, 16549, 16568, 20368, 22672, 26923, 29212, 33098, 33136, 53846, 58424, 66196, 94939, 107692, 116848, 132392, 138757, 189878, 215384, 264784, 277514, 379756, 430768, 555028, 759512, 1110056, 1519024, 1803841, 2220112, 3607682, 7215364, 14430728, 28861456]

約数ペア:

[(1, 28861456), (2, 14430728), (4, 7215364), (8, 3607682), (13, 2220112), (16, 1803841), (19, 1519024), (26, 1110056), (38, 759512), (52, 555028), (67, 430768), (76, 379756), (104, 277514), (109, 264784), (134, 215384), (152, 189878), (208, 138757), (218, 132392), (247, 116848), (268, 107692), (304, 94939), (436, 66196), (494, 58424), (536, 53846), (871, 33136), (872, 33098), (988, 29212), (1072, 26923), (1273, 22672), (1417, 20368), (1742, 16568), (1744, 16549), (1976, 14606), (2071, 13936), (2546, 11336), (2834, 10184), (3484, 8284), (3952, 7303), (4142, 6968), (5092, 5668)]