20123053568

素因数分解:

$2^9\times {\mathrm{53}}^1\times {\mathrm{741563}}^1$

素因数の和:741634

約数の個数: 40

約数和(自身を含む): 40965478488

約数和(自身を除く): 20842424920

約数列:

[1, 2, 4, 8, 16, 32, 53, 64, 106, 128, 212, 256, 424, 512, 848, 1696, 3392, 6784, 13568, 27136, 741563, 1483126, 2966252, 5932504, 11865008, 23730016, 39302839, 47460032, 78605678, 94920064, 157211356, 189840128, 314422712, 379680256, 628845424, 1257690848, 2515381696, 5030763392, 10061526784, 20123053568]

約数ペア:

[(1, 20123053568), (2, 10061526784), (4, 5030763392), (8, 2515381696), (16, 1257690848), (32, 628845424), (53, 379680256), (64, 314422712), (106, 189840128), (128, 157211356), (212, 94920064), (256, 78605678), (424, 47460032), (512, 39302839), (848, 23730016), (1696, 11865008), (3392, 5932504), (6784, 2966252), (13568, 1483126), (27136, 741563)]