18843760

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{18119}}^1$

素因数の和:18145

約数の個数: 40

約数和(自身を含む): 47184480

約数和(自身を除く): 28340720

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 18119, 36238, 72476, 90595, 144952, 181190, 235547, 289904, 362380, 471094, 724760, 942188, 1177735, 1449520, 1884376, 2355470, 3768752, 4710940, 9421880, 18843760]

約数ペア:

[(1, 18843760), (2, 9421880), (4, 4710940), (5, 3768752), (8, 2355470), (10, 1884376), (13, 1449520), (16, 1177735), (20, 942188), (26, 724760), (40, 471094), (52, 362380), (65, 289904), (80, 235547), (104, 181190), (130, 144952), (208, 90595), (260, 72476), (520, 36238), (1040, 18119)]