518853920

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{249449}}^1$

素因数の和:249477

約数の個数: 48

約数和(自身を含む): 1320089400

約数和(自身を除く): 801235480

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 249449, 498898, 997796, 1247245, 1995592, 2494490, 3242837, 3991184, 4988980, 6485674, 7982368, 9977960, 12971348, 16214185, 19955920, 25942696, 32428370, 39911840, 51885392, 64856740, 103770784, 129713480, 259426960, 518853920]

約数ペア:

[(1, 518853920), (2, 259426960), (4, 129713480), (5, 103770784), (8, 64856740), (10, 51885392), (13, 39911840), (16, 32428370), (20, 25942696), (26, 19955920), (32, 16214185), (40, 12971348), (52, 9977960), (65, 7982368), (80, 6485674), (104, 4988980), (130, 3991184), (160, 3242837), (208, 2494490), (260, 1995592), (416, 1247245), (520, 997796), (1040, 498898), (2080, 249449)]