249716620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{2557}}^1$

素因数の和:2842

約数の個数: 48

約数和(自身を含む): 554369760

約数和(自身を除く): 304653140

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 257, 380, 514, 1028, 1285, 2557, 2570, 4883, 5114, 5140, 9766, 10228, 12785, 19532, 24415, 25570, 48583, 48830, 51140, 97166, 97660, 194332, 242915, 485830, 657149, 971660, 1314298, 2628596, 3285745, 6571490, 12485831, 13142980, 24971662, 49943324, 62429155, 124858310, 249716620]

約数ペア:

[(1, 249716620), (2, 124858310), (4, 62429155), (5, 49943324), (10, 24971662), (19, 13142980), (20, 12485831), (38, 6571490), (76, 3285745), (95, 2628596), (190, 1314298), (257, 971660), (380, 657149), (514, 485830), (1028, 242915), (1285, 194332), (2557, 97660), (2570, 97166), (4883, 51140), (5114, 48830), (5140, 48583), (9766, 25570), (10228, 24415), (12785, 19532)]