18723584

素因数分解:

$2^8\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:197

約数の個数: 72

約数和(自身を含む): 41820240

約数和(自身を除く): 23096656

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 61, 64, 88, 109, 122, 128, 176, 218, 244, 256, 352, 436, 488, 671, 704, 872, 976, 1199, 1342, 1408, 1744, 1952, 2398, 2684, 2816, 3488, 3904, 4796, 5368, 6649, 6976, 7808, 9592, 10736, 13298, 13952, 15616, 19184, 21472, 26596, 27904, 38368, 42944, 53192, 73139, 76736, 85888, 106384, 146278, 153472, 171776, 212768, 292556, 306944, 425536, 585112, 851072, 1170224, 1702144, 2340448, 4680896, 9361792, 18723584]

約数ペア:

[(1, 18723584), (2, 9361792), (4, 4680896), (8, 2340448), (11, 1702144), (16, 1170224), (22, 851072), (32, 585112), (44, 425536), (61, 306944), (64, 292556), (88, 212768), (109, 171776), (122, 153472), (128, 146278), (176, 106384), (218, 85888), (244, 76736), (256, 73139), (352, 53192), (436, 42944), (488, 38368), (671, 27904), (704, 26596), (872, 21472), (976, 19184), (1199, 15616), (1342, 13952), (1408, 13298), (1744, 10736), (1952, 9592), (2398, 7808), (2684, 6976), (2816, 6649), (3488, 5368), (3904, 4796)]