81897390

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{909971}}^1$

素因数の和:909984

約数の個数: 24

約数和(自身を含む): 212933448

約数和(自身を除く): 131036058

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 909971, 1819942, 2729913, 4549855, 5459826, 8189739, 9099710, 13649565, 16379478, 27299130, 40948695, 81897390]

約数ペア:

[(1, 81897390), (2, 40948695), (3, 27299130), (5, 16379478), (6, 13649565), (9, 9099710), (10, 8189739), (15, 5459826), (18, 4549855), (30, 2729913), (45, 1819942), (90, 909971)]