20199553948

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^2\times {\mathrm{139}}^1\times {\mathrm{9811}}^1$

素因数の和:10007

約数の個数: 72

約数和(自身を含む): 42540122240

約数和(自身を除く): 22340568292

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 139, 161, 278, 322, 529, 556, 644, 973, 1058, 1946, 2116, 3197, 3703, 3892, 6394, 7406, 9811, 12788, 14812, 19622, 22379, 39244, 44758, 68677, 73531, 89516, 137354, 147062, 225653, 274708, 294124, 451306, 514717, 902612, 1029434, 1363729, 1579571, 2058868, 2727458, 3159142, 5190019, 5454916, 6318284, 9546103, 10380038, 19092206, 20760076, 31365767, 36330133, 38184412, 62731534, 72660266, 125463068, 145320532, 219560369, 439120738, 721412641, 878241476, 1442825282, 2885650564, 5049888487, 10099776974, 20199553948]

約数ペア:

[(1, 20199553948), (2, 10099776974), (4, 5049888487), (7, 2885650564), (14, 1442825282), (23, 878241476), (28, 721412641), (46, 439120738), (92, 219560369), (139, 145320532), (161, 125463068), (278, 72660266), (322, 62731534), (529, 38184412), (556, 36330133), (644, 31365767), (973, 20760076), (1058, 19092206), (1946, 10380038), (2116, 9546103), (3197, 6318284), (3703, 5454916), (3892, 5190019), (6394, 3159142), (7406, 2727458), (9811, 2058868), (12788, 1579571), (14812, 1363729), (19622, 1029434), (22379, 902612), (39244, 514717), (44758, 451306), (68677, 294124), (73531, 274708), (89516, 225653), (137354, 147062)]