1311390

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{1619}}^1$

素因数の和:1638

約数の個数: 40

約数和(自身を含む): 3528360

約数和(自身を除く): 2216970

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810, 1619, 3238, 4857, 8095, 9714, 14571, 16190, 24285, 29142, 43713, 48570, 72855, 87426, 131139, 145710, 218565, 262278, 437130, 655695, 1311390]

約数ペア:

[(1, 1311390), (2, 655695), (3, 437130), (5, 262278), (6, 218565), (9, 145710), (10, 131139), (15, 87426), (18, 72855), (27, 48570), (30, 43713), (45, 29142), (54, 24285), (81, 16190), (90, 14571), (135, 9714), (162, 8095), (270, 4857), (405, 3238), (810, 1619)]