20181580

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{601}}^1$

素因数の和:706

約数の個数: 48

約数和(自身を含む): 44904384

約数和(自身を除く): 24722804

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 73, 92, 115, 146, 230, 292, 365, 460, 601, 730, 1202, 1460, 1679, 2404, 3005, 3358, 6010, 6716, 8395, 12020, 13823, 16790, 27646, 33580, 43873, 55292, 69115, 87746, 138230, 175492, 219365, 276460, 438730, 877460, 1009079, 2018158, 4036316, 5045395, 10090790, 20181580]

約数ペア:

[(1, 20181580), (2, 10090790), (4, 5045395), (5, 4036316), (10, 2018158), (20, 1009079), (23, 877460), (46, 438730), (73, 276460), (92, 219365), (115, 175492), (146, 138230), (230, 87746), (292, 69115), (365, 55292), (460, 43873), (601, 33580), (730, 27646), (1202, 16790), (1460, 13823), (1679, 12020), (2404, 8395), (3005, 6716), (3358, 6010)]