81247550

素因数分解:

$2^1\times 5^2\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{307}}^1$

素因数の和:465

約数の個数: 48

約数和(自身を含む): 155823360

約数和(自身を除く): 74575810

約数列:

[1, 2, 5, 10, 25, 50, 67, 79, 134, 158, 307, 335, 395, 614, 670, 790, 1535, 1675, 1975, 3070, 3350, 3950, 5293, 7675, 10586, 15350, 20569, 24253, 26465, 41138, 48506, 52930, 102845, 121265, 132325, 205690, 242530, 264650, 514225, 606325, 1028450, 1212650, 1624951, 3249902, 8124755, 16249510, 40623775, 81247550]

約数ペア:

[(1, 81247550), (2, 40623775), (5, 16249510), (10, 8124755), (25, 3249902), (50, 1624951), (67, 1212650), (79, 1028450), (134, 606325), (158, 514225), (307, 264650), (335, 242530), (395, 205690), (614, 132325), (670, 121265), (790, 102845), (1535, 52930), (1675, 48506), (1975, 41138), (3070, 26465), (3350, 24253), (3950, 20569), (5293, 15350), (7675, 10586)]