81395584

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{281}}^1$

素因数の和:399

約数の個数: 64

約数和(自身を含む): 170282880

約数和(自身を除く): 88887296

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 73, 124, 128, 146, 248, 281, 292, 496, 562, 584, 992, 1124, 1168, 1984, 2248, 2263, 2336, 3968, 4496, 4526, 4672, 8711, 8992, 9052, 9344, 17422, 17984, 18104, 20513, 34844, 35968, 36208, 41026, 69688, 72416, 82052, 139376, 144832, 164104, 278752, 289664, 328208, 557504, 635903, 656416, 1115008, 1271806, 1312832, 2543612, 2625664, 5087224, 10174448, 20348896, 40697792, 81395584]

約数ペア:

[(1, 81395584), (2, 40697792), (4, 20348896), (8, 10174448), (16, 5087224), (31, 2625664), (32, 2543612), (62, 1312832), (64, 1271806), (73, 1115008), (124, 656416), (128, 635903), (146, 557504), (248, 328208), (281, 289664), (292, 278752), (496, 164104), (562, 144832), (584, 139376), (992, 82052), (1124, 72416), (1168, 69688), (1984, 41026), (2248, 36208), (2263, 35968), (2336, 34844), (3968, 20513), (4496, 18104), (4526, 17984), (4672, 17422), (8711, 9344), (8992, 9052)]