20784896

素因数分解:

$2^8\times {\mathrm{11}}^3\times {\mathrm{61}}^1$

素因数の和:110

約数の個数: 72

約数和(自身を含む): 46382448

約数和(自身を除く): 25597552

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 61, 64, 88, 121, 122, 128, 176, 242, 244, 256, 352, 484, 488, 671, 704, 968, 976, 1331, 1342, 1408, 1936, 1952, 2662, 2684, 2816, 3872, 3904, 5324, 5368, 7381, 7744, 7808, 10648, 10736, 14762, 15488, 15616, 21296, 21472, 29524, 30976, 42592, 42944, 59048, 81191, 85184, 85888, 118096, 162382, 170368, 171776, 236192, 324764, 340736, 472384, 649528, 944768, 1299056, 1889536, 2598112, 5196224, 10392448, 20784896]

約数ペア:

[(1, 20784896), (2, 10392448), (4, 5196224), (8, 2598112), (11, 1889536), (16, 1299056), (22, 944768), (32, 649528), (44, 472384), (61, 340736), (64, 324764), (88, 236192), (121, 171776), (122, 170368), (128, 162382), (176, 118096), (242, 85888), (244, 85184), (256, 81191), (352, 59048), (484, 42944), (488, 42592), (671, 30976), (704, 29524), (968, 21472), (976, 21296), (1331, 15616), (1342, 15488), (1408, 14762), (1936, 10736), (1952, 10648), (2662, 7808), (2684, 7744), (2816, 7381), (3872, 5368), (3904, 5324)]