78902060

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{2333}}^1$

素因数の和:2450

約数の個数: 48

約数和(自身を含む): 176450400

約数和(自身を除く): 97548340

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 89, 95, 178, 190, 356, 380, 445, 890, 1691, 1780, 2333, 3382, 4666, 6764, 8455, 9332, 11665, 16910, 23330, 33820, 44327, 46660, 88654, 177308, 207637, 221635, 415274, 443270, 830548, 886540, 1038185, 2076370, 3945103, 4152740, 7890206, 15780412, 19725515, 39451030, 78902060]

約数ペア:

[(1, 78902060), (2, 39451030), (4, 19725515), (5, 15780412), (10, 7890206), (19, 4152740), (20, 3945103), (38, 2076370), (76, 1038185), (89, 886540), (95, 830548), (178, 443270), (190, 415274), (356, 221635), (380, 207637), (445, 177308), (890, 88654), (1691, 46660), (1780, 44327), (2333, 33820), (3382, 23330), (4666, 16910), (6764, 11665), (8455, 9332)]