20403136

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{179}}^1$

素因数の和:341

約数の個数: 56

約数和(自身を含む): 44165520

約数和(自身を除く): 23762384

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 137, 179, 208, 274, 358, 416, 548, 716, 832, 1096, 1432, 1781, 2192, 2327, 2864, 3562, 4384, 4654, 5728, 7124, 8768, 9308, 11456, 14248, 18616, 24523, 28496, 37232, 49046, 56992, 74464, 98092, 113984, 148928, 196184, 318799, 392368, 637598, 784736, 1275196, 1569472, 2550392, 5100784, 10201568, 20403136]

約数ペア:

[(1, 20403136), (2, 10201568), (4, 5100784), (8, 2550392), (13, 1569472), (16, 1275196), (26, 784736), (32, 637598), (52, 392368), (64, 318799), (104, 196184), (137, 148928), (179, 113984), (208, 98092), (274, 74464), (358, 56992), (416, 49046), (548, 37232), (716, 28496), (832, 24523), (1096, 18616), (1432, 14248), (1781, 11456), (2192, 9308), (2327, 8768), (2864, 7124), (3562, 5728), (4384, 4654)]