289619120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{517177}}^1$

素因数の和:517197

約数の個数: 40

約数和(自身を含む): 769560864

約数和(自身を除く): 479941744

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 517177, 1034354, 2068708, 2585885, 3620239, 4137416, 5171770, 7240478, 8274832, 10343540, 14480956, 18101195, 20687080, 28961912, 36202390, 41374160, 57923824, 72404780, 144809560, 289619120]

約数ペア:

[(1, 289619120), (2, 144809560), (4, 72404780), (5, 57923824), (7, 41374160), (8, 36202390), (10, 28961912), (14, 20687080), (16, 18101195), (20, 14480956), (28, 10343540), (35, 8274832), (40, 7240478), (56, 5171770), (70, 4137416), (80, 3620239), (112, 2585885), (140, 2068708), (280, 1034354), (560, 517177)]