18309880

素因数分解:

$2^3\times 5^1\times {\mathrm{167}}^1\times {\mathrm{2741}}^1$

素因数の和:2919

約数の個数: 32

約数和(自身を含む): 41459040

約数和(自身を除く): 23149160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 167, 334, 668, 835, 1336, 1670, 2741, 3340, 5482, 6680, 10964, 13705, 21928, 27410, 54820, 109640, 457747, 915494, 1830988, 2288735, 3661976, 4577470, 9154940, 18309880]

約数ペア:

[(1, 18309880), (2, 9154940), (4, 4577470), (5, 3661976), (8, 2288735), (10, 1830988), (20, 915494), (40, 457747), (167, 109640), (334, 54820), (668, 27410), (835, 21928), (1336, 13705), (1670, 10964), (2741, 6680), (3340, 5482)]