171949720

素因数分解:

$2^3\times 5^1\times {\mathrm{1489}}^1\times {\mathrm{2887}}^1$

素因数の和:4387

約数の個数: 32

約数和(自身を含む): 387280800

約数和(自身を除く): 215331080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1489, 2887, 2978, 5774, 5956, 7445, 11548, 11912, 14435, 14890, 23096, 28870, 29780, 57740, 59560, 115480, 4298743, 8597486, 17194972, 21493715, 34389944, 42987430, 85974860, 171949720]

約数ペア:

[(1, 171949720), (2, 85974860), (4, 42987430), (5, 34389944), (8, 21493715), (10, 17194972), (20, 8597486), (40, 4298743), (1489, 115480), (2887, 59560), (2978, 57740), (5774, 29780), (5956, 28870), (7445, 23096), (11548, 14890), (11912, 14435)]