1821572020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1\times {\mathrm{11833}}^1$

素因数の和:12064

約数の個数: 48

約数和(自身を含む): 3936461760

約数和(自身を除く): 2114889740

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 179, 215, 358, 430, 716, 860, 895, 1790, 3580, 7697, 11833, 15394, 23666, 30788, 38485, 47332, 59165, 76970, 118330, 153940, 236660, 508819, 1017638, 2035276, 2118107, 2544095, 4236214, 5088190, 8472428, 10176380, 10590535, 21181070, 42362140, 91078601, 182157202, 364314404, 455393005, 910786010, 1821572020]

約数ペア:

[(1, 1821572020), (2, 910786010), (4, 455393005), (5, 364314404), (10, 182157202), (20, 91078601), (43, 42362140), (86, 21181070), (172, 10590535), (179, 10176380), (215, 8472428), (358, 5088190), (430, 4236214), (716, 2544095), (860, 2118107), (895, 2035276), (1790, 1017638), (3580, 508819), (7697, 236660), (11833, 153940), (15394, 118330), (23666, 76970), (30788, 59165), (38485, 47332)]