80521810

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:271

約数の個数: 64

約数和(自身を含む): 159252480

約数和(自身を除く): 78730670

約数列:

[1, 2, 5, 10, 19, 38, 47, 71, 94, 95, 127, 142, 190, 235, 254, 355, 470, 635, 710, 893, 1270, 1349, 1786, 2413, 2698, 3337, 4465, 4826, 5969, 6674, 6745, 8930, 9017, 11938, 12065, 13490, 16685, 18034, 24130, 29845, 33370, 45085, 59690, 63403, 90170, 113411, 126806, 171323, 226822, 317015, 342646, 423799, 567055, 634030, 847598, 856615, 1134110, 1713230, 2118995, 4237990, 8052181, 16104362, 40260905, 80521810]

約数ペア:

[(1, 80521810), (2, 40260905), (5, 16104362), (10, 8052181), (19, 4237990), (38, 2118995), (47, 1713230), (71, 1134110), (94, 856615), (95, 847598), (127, 634030), (142, 567055), (190, 423799), (235, 342646), (254, 317015), (355, 226822), (470, 171323), (635, 126806), (710, 113411), (893, 90170), (1270, 63403), (1349, 59690), (1786, 45085), (2413, 33370), (2698, 29845), (3337, 24130), (4465, 18034), (4826, 16685), (5969, 13490), (6674, 12065), (6745, 11938), (8930, 9017)]