20675584

素因数分解:

$2^{10}\times {\mathrm{61}}^1\times {\mathrm{331}}^1$

素因数の和:412

約数の個数: 44

約数和(自身を含む): 42135448

約数和(自身を除く): 21459864

約数列:

[1, 2, 4, 8, 16, 32, 61, 64, 122, 128, 244, 256, 331, 488, 512, 662, 976, 1024, 1324, 1952, 2648, 3904, 5296, 7808, 10592, 15616, 20191, 21184, 31232, 40382, 42368, 62464, 80764, 84736, 161528, 169472, 323056, 338944, 646112, 1292224, 2584448, 5168896, 10337792, 20675584]

約数ペア:

[(1, 20675584), (2, 10337792), (4, 5168896), (8, 2584448), (16, 1292224), (32, 646112), (61, 338944), (64, 323056), (122, 169472), (128, 161528), (244, 84736), (256, 80764), (331, 62464), (488, 42368), (512, 40382), (662, 31232), (976, 21184), (1024, 20191), (1324, 15616), (1952, 10592), (2648, 7808), (3904, 5296)]