28389040

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^2\times {\mathrm{983}}^1$

素因数の和:1034

約数の個数: 60

約数和(自身を含む): 69732144

約数和(自身を除く): 41343104

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 361, 380, 722, 760, 983, 1444, 1520, 1805, 1966, 2888, 3610, 3932, 4915, 5776, 7220, 7864, 9830, 14440, 15728, 18677, 19660, 28880, 37354, 39320, 74708, 78640, 93385, 149416, 186770, 298832, 354863, 373540, 709726, 747080, 1419452, 1494160, 1774315, 2838904, 3548630, 5677808, 7097260, 14194520, 28389040]

約数ペア:

[(1, 28389040), (2, 14194520), (4, 7097260), (5, 5677808), (8, 3548630), (10, 2838904), (16, 1774315), (19, 1494160), (20, 1419452), (38, 747080), (40, 709726), (76, 373540), (80, 354863), (95, 298832), (152, 186770), (190, 149416), (304, 93385), (361, 78640), (380, 74708), (722, 39320), (760, 37354), (983, 28880), (1444, 19660), (1520, 18677), (1805, 15728), (1966, 14440), (2888, 9830), (3610, 7864), (3932, 7220), (4915, 5776)]