2156856880

素因数分解:

$2^4\times 5^1\times {\mathrm{3917}}^1\times {\mathrm{6883}}^1$

素因数の和:10813

約数の個数: 40

約数和(自身を含む): 5016701232

約数和(自身を除く): 2859844352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3917, 6883, 7834, 13766, 15668, 19585, 27532, 31336, 34415, 39170, 55064, 62672, 68830, 78340, 110128, 137660, 156680, 275320, 313360, 550640, 26960711, 53921422, 107842844, 134803555, 215685688, 269607110, 431371376, 539214220, 1078428440, 2156856880]

約数ペア:

[(1, 2156856880), (2, 1078428440), (4, 539214220), (5, 431371376), (8, 269607110), (10, 215685688), (16, 134803555), (20, 107842844), (40, 53921422), (80, 26960711), (3917, 550640), (6883, 313360), (7834, 275320), (13766, 156680), (15668, 137660), (19585, 110128), (27532, 78340), (31336, 68830), (34415, 62672), (39170, 55064)]