71477980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{439}}^1\times {\mathrm{1163}}^1$

素因数の和:1618

約数の個数: 48

約数和(自身を含む): 172085760

約数和(自身を除く): 100607780

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 439, 878, 1163, 1756, 2195, 2326, 3073, 4390, 4652, 5815, 6146, 8141, 8780, 11630, 12292, 15365, 16282, 23260, 30730, 32564, 40705, 61460, 81410, 162820, 510557, 1021114, 2042228, 2552785, 3573899, 5105570, 7147798, 10211140, 14295596, 17869495, 35738990, 71477980]

約数ペア:

[(1, 71477980), (2, 35738990), (4, 17869495), (5, 14295596), (7, 10211140), (10, 7147798), (14, 5105570), (20, 3573899), (28, 2552785), (35, 2042228), (70, 1021114), (140, 510557), (439, 162820), (878, 81410), (1163, 61460), (1756, 40705), (2195, 32564), (2326, 30730), (3073, 23260), (4390, 16282), (4652, 15365), (5815, 12292), (6146, 11630), (8141, 8780)]