201991984

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{4813}}^1$

素因数の和:4925

約数の個数: 40

約数和(自身を含む): 407110352

約数和(自身を除く): 205118368

約数列:

[1, 2, 4, 8, 16, 43, 61, 86, 122, 172, 244, 344, 488, 688, 976, 2623, 4813, 5246, 9626, 10492, 19252, 20984, 38504, 41968, 77008, 206959, 293593, 413918, 587186, 827836, 1174372, 1655672, 2348744, 3311344, 4697488, 12624499, 25248998, 50497996, 100995992, 201991984]

約数ペア:

[(1, 201991984), (2, 100995992), (4, 50497996), (8, 25248998), (16, 12624499), (43, 4697488), (61, 3311344), (86, 2348744), (122, 1655672), (172, 1174372), (244, 827836), (344, 587186), (488, 413918), (688, 293593), (976, 206959), (2623, 77008), (4813, 41968), (5246, 38504), (9626, 20984), (10492, 19252)]