81051660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{450287}}^1$

素因数の和:450302

約数の個数: 36

約数和(自身を含む): 245857248

約数和(自身を除く): 164805588

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 450287, 900574, 1350861, 1801148, 2251435, 2701722, 4052583, 4502870, 5403444, 6754305, 8105166, 9005740, 13508610, 16210332, 20262915, 27017220, 40525830, 81051660]

約数ペア:

[(1, 81051660), (2, 40525830), (3, 27017220), (4, 20262915), (5, 16210332), (6, 13508610), (9, 9005740), (10, 8105166), (12, 6754305), (15, 5403444), (18, 4502870), (20, 4052583), (30, 2701722), (36, 2251435), (45, 1801148), (60, 1350861), (90, 900574), (180, 450287)]