51376780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{28229}}^1$

素因数の和:28258

約数の個数: 48

約数和(自身を含む): 132793920

約数和(自身を除く): 81417140

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 28229, 56458, 112916, 141145, 197603, 282290, 366977, 395206, 564580, 733954, 790412, 988015, 1467908, 1834885, 1976030, 2568839, 3669770, 3952060, 5137678, 7339540, 10275356, 12844195, 25688390, 51376780]

約数ペア:

[(1, 51376780), (2, 25688390), (4, 12844195), (5, 10275356), (7, 7339540), (10, 5137678), (13, 3952060), (14, 3669770), (20, 2568839), (26, 1976030), (28, 1834885), (35, 1467908), (52, 988015), (65, 790412), (70, 733954), (91, 564580), (130, 395206), (140, 366977), (182, 282290), (260, 197603), (364, 141145), (455, 112916), (910, 56458), (1820, 28229)]