400720864

素因数分解:

$2^5\times {\mathrm{79}}^1\times {\mathrm{293}}^1\times {\mathrm{541}}^1$

素因数の和:923

約数の個数: 48

約数和(自身を含む): 803113920

約数和(自身を除く): 402393056

約数列:

[1, 2, 4, 8, 16, 32, 79, 158, 293, 316, 541, 586, 632, 1082, 1172, 1264, 2164, 2344, 2528, 4328, 4688, 8656, 9376, 17312, 23147, 42739, 46294, 85478, 92588, 158513, 170956, 185176, 317026, 341912, 370352, 634052, 683824, 740704, 1268104, 1367648, 2536208, 5072416, 12522527, 25045054, 50090108, 100180216, 200360432, 400720864]

約数ペア:

[(1, 400720864), (2, 200360432), (4, 100180216), (8, 50090108), (16, 25045054), (32, 12522527), (79, 5072416), (158, 2536208), (293, 1367648), (316, 1268104), (541, 740704), (586, 683824), (632, 634052), (1082, 370352), (1172, 341912), (1264, 317026), (2164, 185176), (2344, 170956), (2528, 158513), (4328, 92588), (4688, 85478), (8656, 46294), (9376, 42739), (17312, 23147)]