990116990

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{331}}^1\times {\mathrm{3361}}^1$

素因数の和:3788

約数の個数: 32

約数和(自身を含む): 1808218080

約数和(自身を除く): 818101090

約数列:

[1, 2, 5, 10, 89, 178, 331, 445, 662, 890, 1655, 3310, 3361, 6722, 16805, 29459, 33610, 58918, 147295, 294590, 299129, 598258, 1112491, 1495645, 2224982, 2991290, 5562455, 11124910, 99011699, 198023398, 495058495, 990116990]

約数ペア:

[(1, 990116990), (2, 495058495), (5, 198023398), (10, 99011699), (89, 11124910), (178, 5562455), (331, 2991290), (445, 2224982), (662, 1495645), (890, 1112491), (1655, 598258), (3310, 299129), (3361, 294590), (6722, 147295), (16805, 58918), (29459, 33610)]