28947428

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:228

約数の個数: 48

約数和(自身を含む): 54996480

約数和(自身を除く): 26049052

約数列:

[1, 2, 4, 31, 43, 61, 62, 86, 89, 122, 124, 172, 178, 244, 356, 1333, 1891, 2623, 2666, 2759, 3782, 3827, 5246, 5332, 5429, 5518, 7564, 7654, 10492, 10858, 11036, 15308, 21716, 81313, 118637, 162626, 168299, 233447, 237274, 325252, 336598, 466894, 474548, 673196, 933788, 7236857, 14473714, 28947428]

約数ペア:

[(1, 28947428), (2, 14473714), (4, 7236857), (31, 933788), (43, 673196), (61, 474548), (62, 466894), (86, 336598), (89, 325252), (122, 237274), (124, 233447), (172, 168299), (178, 162626), (244, 118637), (356, 81313), (1333, 21716), (1891, 15308), (2623, 11036), (2666, 10858), (2759, 10492), (3782, 7654), (3827, 7564), (5246, 5518), (5332, 5429)]