6481540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{257}}^1$

素因数の和:376

約数の個数: 48

約数和(自身を含む): 14866992

約数和(自身を除く): 8385452

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 97, 130, 194, 257, 260, 388, 485, 514, 970, 1028, 1261, 1285, 1940, 2522, 2570, 3341, 5044, 5140, 6305, 6682, 12610, 13364, 16705, 24929, 25220, 33410, 49858, 66820, 99716, 124645, 249290, 324077, 498580, 648154, 1296308, 1620385, 3240770, 6481540]

約数ペア:

[(1, 6481540), (2, 3240770), (4, 1620385), (5, 1296308), (10, 648154), (13, 498580), (20, 324077), (26, 249290), (52, 124645), (65, 99716), (97, 66820), (130, 49858), (194, 33410), (257, 25220), (260, 24929), (388, 16705), (485, 13364), (514, 12610), (970, 6682), (1028, 6305), (1261, 5140), (1285, 5044), (1940, 3341), (2522, 2570)]