31389568

素因数分解:

$2^7\times 7^1\times {\mathrm{53}}^1\times {\mathrm{661}}^1$

素因数の和:735

約数の個数: 64

約数和(自身を含む): 72925920

約数和(自身を除く): 41536352

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 53, 56, 64, 106, 112, 128, 212, 224, 371, 424, 448, 661, 742, 848, 896, 1322, 1484, 1696, 2644, 2968, 3392, 4627, 5288, 5936, 6784, 9254, 10576, 11872, 18508, 21152, 23744, 35033, 37016, 42304, 47488, 70066, 74032, 84608, 140132, 148064, 245231, 280264, 296128, 490462, 560528, 592256, 980924, 1121056, 1961848, 2242112, 3923696, 4484224, 7847392, 15694784, 31389568]

約数ペア:

[(1, 31389568), (2, 15694784), (4, 7847392), (7, 4484224), (8, 3923696), (14, 2242112), (16, 1961848), (28, 1121056), (32, 980924), (53, 592256), (56, 560528), (64, 490462), (106, 296128), (112, 280264), (128, 245231), (212, 148064), (224, 140132), (371, 84608), (424, 74032), (448, 70066), (661, 47488), (742, 42304), (848, 37016), (896, 35033), (1322, 23744), (1484, 21152), (1696, 18508), (2644, 11872), (2968, 10576), (3392, 9254), (4627, 6784), (5288, 5936)]