19745408

素因数分解:

$2^7\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{353}}^1$

素因数の和:409

約数の個数: 64

約数和(自身を含む): 43329600

約数和(自身を除く): 23584192

約数列:

[1, 2, 4, 8, 16, 19, 23, 32, 38, 46, 64, 76, 92, 128, 152, 184, 304, 353, 368, 437, 608, 706, 736, 874, 1216, 1412, 1472, 1748, 2432, 2824, 2944, 3496, 5648, 6707, 6992, 8119, 11296, 13414, 13984, 16238, 22592, 26828, 27968, 32476, 45184, 53656, 55936, 64952, 107312, 129904, 154261, 214624, 259808, 308522, 429248, 519616, 617044, 858496, 1039232, 1234088, 2468176, 4936352, 9872704, 19745408]

約数ペア:

[(1, 19745408), (2, 9872704), (4, 4936352), (8, 2468176), (16, 1234088), (19, 1039232), (23, 858496), (32, 617044), (38, 519616), (46, 429248), (64, 308522), (76, 259808), (92, 214624), (128, 154261), (152, 129904), (184, 107312), (304, 64952), (353, 55936), (368, 53656), (437, 45184), (608, 32476), (706, 27968), (736, 26828), (874, 22592), (1216, 16238), (1412, 13984), (1472, 13414), (1748, 11296), (2432, 8119), (2824, 6992), (2944, 6707), (3496, 5648)]