81158900

素因数分解:

$2^2\times 5^2\times {\mathrm{53}}^1\times {\mathrm{15313}}^1$

素因数の和:15380

約数の個数: 36

約数和(自身を含む): 179449452

約数和(自身を除く): 98290552

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 53, 100, 106, 212, 265, 530, 1060, 1325, 2650, 5300, 15313, 30626, 61252, 76565, 153130, 306260, 382825, 765650, 811589, 1531300, 1623178, 3246356, 4057945, 8115890, 16231780, 20289725, 40579450, 81158900]

約数ペア:

[(1, 81158900), (2, 40579450), (4, 20289725), (5, 16231780), (10, 8115890), (20, 4057945), (25, 3246356), (50, 1623178), (53, 1531300), (100, 811589), (106, 765650), (212, 382825), (265, 306260), (530, 153130), (1060, 76565), (1325, 61252), (2650, 30626), (5300, 15313)]