1978156975

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{10651}}^1$

素因数の和:10720

約数の個数: 48

約数和(自身を含む): 2853031680

約数和(自身を除く): 874874705

約数列:

[1, 5, 17, 19, 23, 25, 85, 95, 115, 323, 391, 425, 437, 475, 575, 1615, 1955, 2185, 7429, 8075, 9775, 10651, 10925, 37145, 53255, 181067, 185725, 202369, 244973, 266275, 905335, 1011845, 1224865, 3440273, 4164541, 4526675, 4654487, 5059225, 6124325, 17201365, 20822705, 23272435, 79126279, 86006825, 104113525, 116362175, 395631395, 1978156975]

約数ペア:

[(1, 1978156975), (5, 395631395), (17, 116362175), (19, 104113525), (23, 86006825), (25, 79126279), (85, 23272435), (95, 20822705), (115, 17201365), (323, 6124325), (391, 5059225), (425, 4654487), (437, 4526675), (475, 4164541), (575, 3440273), (1615, 1224865), (1955, 1011845), (2185, 905335), (7429, 266275), (8075, 244973), (9775, 202369), (10651, 185725), (10925, 181067), (37145, 53255)]