51218580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{121949}}^1$

素因数の和:121968

約数の個数: 48

約数和(自身を含む): 163900800

約数和(自身を除く): 112682220

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 121949, 243898, 365847, 487796, 609745, 731694, 853643, 1219490, 1463388, 1707286, 1829235, 2438980, 2560929, 3414572, 3658470, 4268215, 5121858, 7316940, 8536430, 10243716, 12804645, 17072860, 25609290, 51218580]

約数ペア:

[(1, 51218580), (2, 25609290), (3, 17072860), (4, 12804645), (5, 10243716), (6, 8536430), (7, 7316940), (10, 5121858), (12, 4268215), (14, 3658470), (15, 3414572), (20, 2560929), (21, 2438980), (28, 1829235), (30, 1707286), (35, 1463388), (42, 1219490), (60, 853643), (70, 731694), (84, 609745), (105, 487796), (140, 365847), (210, 243898), (420, 121949)]