280715757

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{229}}^1\times {\mathrm{269}}^1$

素因数の和:546

約数の個数: 48

約数和(自身を含む): 453081600

約数和(自身を除く): 172365843

約数列:

[1, 3, 7, 21, 31, 49, 93, 147, 217, 229, 269, 651, 687, 807, 1519, 1603, 1883, 4557, 4809, 5649, 7099, 8339, 11221, 13181, 21297, 25017, 33663, 39543, 49693, 58373, 61601, 149079, 175119, 184803, 347851, 408611, 431207, 1043553, 1225833, 1293621, 1909631, 3018449, 5728893, 9055347, 13367417, 40102251, 93571919, 280715757]

約数ペア:

[(1, 280715757), (3, 93571919), (7, 40102251), (21, 13367417), (31, 9055347), (49, 5728893), (93, 3018449), (147, 1909631), (217, 1293621), (229, 1225833), (269, 1043553), (651, 431207), (687, 408611), (807, 347851), (1519, 184803), (1603, 175119), (1883, 149079), (4557, 61601), (4809, 58373), (5649, 49693), (7099, 39543), (8339, 33663), (11221, 25017), (13181, 21297)]