18106880

素因数分解:

$2^9\times 5^1\times {\mathrm{11}}^1\times {\mathrm{643}}^1$

素因数の和:677

約数の個数: 80

約数和(自身を含む): 47434464

約数和(自身を除く): 29327584

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 256, 320, 352, 440, 512, 640, 643, 704, 880, 1280, 1286, 1408, 1760, 2560, 2572, 2816, 3215, 3520, 5144, 5632, 6430, 7040, 7073, 10288, 12860, 14080, 14146, 20576, 25720, 28160, 28292, 35365, 41152, 51440, 56584, 70730, 82304, 102880, 113168, 141460, 164608, 205760, 226336, 282920, 329216, 411520, 452672, 565840, 823040, 905344, 1131680, 1646080, 1810688, 2263360, 3621376, 4526720, 9053440, 18106880]

約数ペア:

[(1, 18106880), (2, 9053440), (4, 4526720), (5, 3621376), (8, 2263360), (10, 1810688), (11, 1646080), (16, 1131680), (20, 905344), (22, 823040), (32, 565840), (40, 452672), (44, 411520), (55, 329216), (64, 282920), (80, 226336), (88, 205760), (110, 164608), (128, 141460), (160, 113168), (176, 102880), (220, 82304), (256, 70730), (320, 56584), (352, 51440), (440, 41152), (512, 35365), (640, 28292), (643, 28160), (704, 25720), (880, 20576), (1280, 14146), (1286, 14080), (1408, 12860), (1760, 10288), (2560, 7073), (2572, 7040), (2816, 6430), (3215, 5632), (3520, 5144)]