71781140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{3461}}^1$

素因数の和:3548

約数の個数: 48

約数和(自身を含む): 162270864

約数和(自身を除く): 90489724

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 61, 68, 85, 122, 170, 244, 305, 340, 610, 1037, 1220, 2074, 3461, 4148, 5185, 6922, 10370, 13844, 17305, 20740, 34610, 58837, 69220, 117674, 211121, 235348, 294185, 422242, 588370, 844484, 1055605, 1176740, 2111210, 3589057, 4222420, 7178114, 14356228, 17945285, 35890570, 71781140]

約数ペア:

[(1, 71781140), (2, 35890570), (4, 17945285), (5, 14356228), (10, 7178114), (17, 4222420), (20, 3589057), (34, 2111210), (61, 1176740), (68, 1055605), (85, 844484), (122, 588370), (170, 422242), (244, 294185), (305, 235348), (340, 211121), (610, 117674), (1037, 69220), (1220, 58837), (2074, 34610), (3461, 20740), (4148, 17305), (5185, 13844), (6922, 10370)]