280883920

素因数分解:

$2^4\times 5^1\times {\mathrm{373}}^1\times {\mathrm{9413}}^1$

素因数の和:9799

約数の個数: 40

約数和(自身を含む): 654875496

約数和(自身を除く): 373991576

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 373, 746, 1492, 1865, 2984, 3730, 5968, 7460, 9413, 14920, 18826, 29840, 37652, 47065, 75304, 94130, 150608, 188260, 376520, 753040, 3511049, 7022098, 14044196, 17555245, 28088392, 35110490, 56176784, 70220980, 140441960, 280883920]

約数ペア:

[(1, 280883920), (2, 140441960), (4, 70220980), (5, 56176784), (8, 35110490), (10, 28088392), (16, 17555245), (20, 14044196), (40, 7022098), (80, 3511049), (373, 753040), (746, 376520), (1492, 188260), (1865, 150608), (2984, 94130), (3730, 75304), (5968, 47065), (7460, 37652), (9413, 29840), (14920, 18826)]