20121101865

素因数分解:

$3^4\times 5^1\times {\mathrm{3203}}^1\times {\mathrm{15511}}^1$

素因数の和:18731

約数の個数: 40

約数和(自身を含む): 36082525248

約数和(自身を除く): 15961423383

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 3203, 9609, 15511, 16015, 28827, 46533, 48045, 77555, 86481, 139599, 144135, 232665, 259443, 418797, 432405, 697995, 1256391, 1297215, 2093985, 6281955, 49681733, 149045199, 248408665, 447135597, 745225995, 1341406791, 2235677985, 4024220373, 6707033955, 20121101865]

約数ペア:

[(1, 20121101865), (3, 6707033955), (5, 4024220373), (9, 2235677985), (15, 1341406791), (27, 745225995), (45, 447135597), (81, 248408665), (135, 149045199), (405, 49681733), (3203, 6281955), (9609, 2093985), (15511, 1297215), (16015, 1256391), (28827, 697995), (46533, 432405), (48045, 418797), (77555, 259443), (86481, 232665), (139599, 144135)]