20727328

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{467}}^1$

素因数の和:569

約数の個数: 48

約数和(自身を含む): 43636320

約数和(自身を除く): 22908992

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 73, 76, 146, 152, 292, 304, 467, 584, 608, 934, 1168, 1387, 1868, 2336, 2774, 3736, 5548, 7472, 8873, 11096, 14944, 17746, 22192, 34091, 35492, 44384, 68182, 70984, 136364, 141968, 272728, 283936, 545456, 647729, 1090912, 1295458, 2590916, 5181832, 10363664, 20727328]

約数ペア:

[(1, 20727328), (2, 10363664), (4, 5181832), (8, 2590916), (16, 1295458), (19, 1090912), (32, 647729), (38, 545456), (73, 283936), (76, 272728), (146, 141968), (152, 136364), (292, 70984), (304, 68182), (467, 44384), (584, 35492), (608, 34091), (934, 22192), (1168, 17746), (1387, 14944), (1868, 11096), (2336, 8873), (2774, 7472), (3736, 5548)]