20214075

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{277}}^1$

素因数の和:436

約数の個数: 48

約数和(自身を含む): 38608640

約数和(自身を除く): 18394565

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 139, 175, 277, 417, 525, 695, 831, 973, 1385, 1939, 2085, 2919, 3475, 4155, 4865, 5817, 6925, 9695, 10425, 14595, 20775, 24325, 29085, 38503, 48475, 72975, 115509, 145425, 192515, 269521, 577545, 808563, 962575, 1347605, 2887725, 4042815, 6738025, 20214075]

約数ペア:

[(1, 20214075), (3, 6738025), (5, 4042815), (7, 2887725), (15, 1347605), (21, 962575), (25, 808563), (35, 577545), (75, 269521), (105, 192515), (139, 145425), (175, 115509), (277, 72975), (417, 48475), (525, 38503), (695, 29085), (831, 24325), (973, 20775), (1385, 14595), (1939, 10425), (2085, 9695), (2919, 6925), (3475, 5817), (4155, 4865)]