20512142735

素因数分解:

$5^1\times 7^1\times {\mathrm{61}}^2\times {\mathrm{239}}^1\times {\mathrm{659}}^1$

素因数の和:1032

約数の個数: 48

約数和(自身を含む): 28762905600

約数和(自身を除く): 8250762865

約数列:

[1, 5, 7, 35, 61, 239, 305, 427, 659, 1195, 1673, 2135, 3295, 3721, 4613, 8365, 14579, 18605, 23065, 26047, 40199, 72895, 102053, 130235, 157501, 200995, 281393, 510265, 787505, 889319, 1102507, 1406965, 2452139, 4446595, 5512535, 6225233, 9607561, 12260695, 17164973, 31126165, 48037805, 67252927, 85824865, 336264635, 586061221, 2930306105, 4102428547, 20512142735]

約数ペア:

[(1, 20512142735), (5, 4102428547), (7, 2930306105), (35, 586061221), (61, 336264635), (239, 85824865), (305, 67252927), (427, 48037805), (659, 31126165), (1195, 17164973), (1673, 12260695), (2135, 9607561), (3295, 6225233), (3721, 5512535), (4613, 4446595), (8365, 2452139), (14579, 1406965), (18605, 1102507), (23065, 889319), (26047, 787505), (40199, 510265), (72895, 281393), (102053, 200995), (130235, 157501)]