280110320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{500197}}^1$

素因数の和:500217

約数の個数: 40

約数和(自身を含む): 744294624

約数和(自身を除く): 464184304

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 500197, 1000394, 2000788, 2500985, 3501379, 4001576, 5001970, 7002758, 8003152, 10003940, 14005516, 17506895, 20007880, 28011032, 35013790, 40015760, 56022064, 70027580, 140055160, 280110320]

約数ペア:

[(1, 280110320), (2, 140055160), (4, 70027580), (5, 56022064), (7, 40015760), (8, 35013790), (10, 28011032), (14, 20007880), (16, 17506895), (20, 14005516), (28, 10003940), (35, 8003152), (40, 7002758), (56, 5001970), (70, 4001576), (80, 3501379), (112, 2500985), (140, 2000788), (280, 1000394), (560, 500197)]