28203136

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{997}}^1$

素因数の和:1041

約数の個数: 64

約数和(自身を含む): 64131480

約数和(自身を除く): 35928344

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 32, 34, 52, 64, 68, 104, 128, 136, 208, 221, 272, 416, 442, 544, 832, 884, 997, 1088, 1664, 1768, 1994, 2176, 3536, 3988, 7072, 7976, 12961, 14144, 15952, 16949, 25922, 28288, 31904, 33898, 51844, 63808, 67796, 103688, 127616, 135592, 207376, 220337, 271184, 414752, 440674, 542368, 829504, 881348, 1084736, 1659008, 1762696, 2169472, 3525392, 7050784, 14101568, 28203136]

約数ペア:

[(1, 28203136), (2, 14101568), (4, 7050784), (8, 3525392), (13, 2169472), (16, 1762696), (17, 1659008), (26, 1084736), (32, 881348), (34, 829504), (52, 542368), (64, 440674), (68, 414752), (104, 271184), (128, 220337), (136, 207376), (208, 135592), (221, 127616), (272, 103688), (416, 67796), (442, 63808), (544, 51844), (832, 33898), (884, 31904), (997, 28288), (1088, 25922), (1664, 16949), (1768, 15952), (1994, 14144), (2176, 12961), (3536, 7976), (3988, 7072)]