81371790

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{100459}}^1$

素因数の和:100478

約数の個数: 40

約数和(自身を含む): 218801880

約数和(自身を除く): 137430090

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810, 100459, 200918, 301377, 502295, 602754, 904131, 1004590, 1506885, 1808262, 2712393, 3013770, 4520655, 5424786, 8137179, 9041310, 13561965, 16274358, 27123930, 40685895, 81371790]

約数ペア:

[(1, 81371790), (2, 40685895), (3, 27123930), (5, 16274358), (6, 13561965), (9, 9041310), (10, 8137179), (15, 5424786), (18, 4520655), (27, 3013770), (30, 2712393), (45, 1808262), (54, 1506885), (81, 1004590), (90, 904131), (135, 602754), (162, 502295), (270, 301377), (405, 200918), (810, 100459)]