18785535904

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{718541}}^1$

素因数の和:718613

約数の個数: 48

約数和(自身を含む): 39835968480

約数和(自身を除く): 21050432576

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 43, 76, 86, 152, 172, 304, 344, 608, 688, 817, 1376, 1634, 3268, 6536, 13072, 26144, 718541, 1437082, 2874164, 5748328, 11496656, 13652279, 22993312, 27304558, 30897263, 54609116, 61794526, 109218232, 123589052, 218436464, 247178104, 436872928, 494356208, 587047997, 988712416, 1174095994, 2348191988, 4696383976, 9392767952, 18785535904]

約数ペア:

[(1, 18785535904), (2, 9392767952), (4, 4696383976), (8, 2348191988), (16, 1174095994), (19, 988712416), (32, 587047997), (38, 494356208), (43, 436872928), (76, 247178104), (86, 218436464), (152, 123589052), (172, 109218232), (304, 61794526), (344, 54609116), (608, 30897263), (688, 27304558), (817, 22993312), (1376, 13652279), (1634, 11496656), (3268, 5748328), (6536, 2874164), (13072, 1437082), (26144, 718541)]