1310531984

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{191}}^1\times {\mathrm{9973}}^1$

素因数の和:10215

約数の個数: 40

約数和(自身を含む): 2612070912

約数和(自身を除く): 1301538928

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 191, 344, 382, 688, 764, 1528, 3056, 8213, 9973, 16426, 19946, 32852, 39892, 65704, 79784, 131408, 159568, 428839, 857678, 1715356, 1904843, 3430712, 3809686, 6861424, 7619372, 15238744, 30477488, 81908249, 163816498, 327632996, 655265992, 1310531984]

約数ペア:

[(1, 1310531984), (2, 655265992), (4, 327632996), (8, 163816498), (16, 81908249), (43, 30477488), (86, 15238744), (172, 7619372), (191, 6861424), (344, 3809686), (382, 3430712), (688, 1904843), (764, 1715356), (1528, 857678), (3056, 428839), (8213, 159568), (9973, 131408), (16426, 79784), (19946, 65704), (32852, 39892)]