28377828

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{521}}^1$

素因数の和:637

約数の個数: 72

約数和(自身を含む): 76953240

約数和(自身を除く): 48575412

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 89, 102, 153, 178, 204, 267, 306, 356, 521, 534, 612, 801, 1042, 1068, 1513, 1563, 1602, 2084, 3026, 3126, 3204, 4539, 4689, 6052, 6252, 8857, 9078, 9378, 13617, 17714, 18156, 18756, 26571, 27234, 35428, 46369, 53142, 54468, 79713, 92738, 106284, 139107, 159426, 185476, 278214, 318852, 417321, 556428, 788273, 834642, 1576546, 1669284, 2364819, 3153092, 4729638, 7094457, 9459276, 14188914, 28377828]

約数ペア:

[(1, 28377828), (2, 14188914), (3, 9459276), (4, 7094457), (6, 4729638), (9, 3153092), (12, 2364819), (17, 1669284), (18, 1576546), (34, 834642), (36, 788273), (51, 556428), (68, 417321), (89, 318852), (102, 278214), (153, 185476), (178, 159426), (204, 139107), (267, 106284), (306, 92738), (356, 79713), (521, 54468), (534, 53142), (612, 46369), (801, 35428), (1042, 27234), (1068, 26571), (1513, 18756), (1563, 18156), (1602, 17714), (2084, 13617), (3026, 9378), (3126, 9078), (3204, 8857), (4539, 6252), (4689, 6052)]