664725040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{1187009}}^1$

素因数の和:1187029

約数の個数: 40

約数和(自身を含む): 1766270880

約数和(自身を除く): 1101545840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 1187009, 2374018, 4748036, 5935045, 8309063, 9496072, 11870090, 16618126, 18992144, 23740180, 33236252, 41545315, 47480360, 66472504, 83090630, 94960720, 132945008, 166181260, 332362520, 664725040]

約数ペア:

[(1, 664725040), (2, 332362520), (4, 166181260), (5, 132945008), (7, 94960720), (8, 83090630), (10, 66472504), (14, 47480360), (16, 41545315), (20, 33236252), (28, 23740180), (35, 18992144), (40, 16618126), (56, 11870090), (70, 9496072), (80, 8309063), (112, 5935045), (140, 4748036), (280, 2374018), (560, 1187009)]