12963080

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{257}}^1$

素因数の和:378

約数の個数: 64

約数和(自身を含む): 31857840

約数和(自身を除く): 18894760

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 97, 104, 130, 194, 257, 260, 388, 485, 514, 520, 776, 970, 1028, 1261, 1285, 1940, 2056, 2522, 2570, 3341, 3880, 5044, 5140, 6305, 6682, 10088, 10280, 12610, 13364, 16705, 24929, 25220, 26728, 33410, 49858, 50440, 66820, 99716, 124645, 133640, 199432, 249290, 324077, 498580, 648154, 997160, 1296308, 1620385, 2592616, 3240770, 6481540, 12963080]

約数ペア:

[(1, 12963080), (2, 6481540), (4, 3240770), (5, 2592616), (8, 1620385), (10, 1296308), (13, 997160), (20, 648154), (26, 498580), (40, 324077), (52, 249290), (65, 199432), (97, 133640), (104, 124645), (130, 99716), (194, 66820), (257, 50440), (260, 49858), (388, 33410), (485, 26728), (514, 25220), (520, 24929), (776, 16705), (970, 13364), (1028, 12610), (1261, 10280), (1285, 10088), (1940, 6682), (2056, 6305), (2522, 5140), (2570, 5044), (3341, 3880)]