20443456

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{409}}^1$

素因数の和:503

約数の個数: 56

約数和(自身を含む): 44988480

約数和(自身を除く): 24545024

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 71, 88, 142, 176, 284, 352, 409, 568, 704, 781, 818, 1136, 1562, 1636, 2272, 3124, 3272, 4499, 4544, 6248, 6544, 8998, 12496, 13088, 17996, 24992, 26176, 29039, 35992, 49984, 58078, 71984, 116156, 143968, 232312, 287936, 319429, 464624, 638858, 929248, 1277716, 1858496, 2555432, 5110864, 10221728, 20443456]

約数ペア:

[(1, 20443456), (2, 10221728), (4, 5110864), (8, 2555432), (11, 1858496), (16, 1277716), (22, 929248), (32, 638858), (44, 464624), (64, 319429), (71, 287936), (88, 232312), (142, 143968), (176, 116156), (284, 71984), (352, 58078), (409, 49984), (568, 35992), (704, 29039), (781, 26176), (818, 24992), (1136, 17996), (1562, 13088), (1636, 12496), (2272, 8998), (3124, 6544), (3272, 6248), (4499, 4544)]